Patent Publication Number: US-11638860-B2

Title: Golf club head with adjustable fitting mechanisms

Description:
RELATED APPLICATION DATA 
     This is a continuation of U.S. patent application Ser. No. 16/723,954, filed on Dec. 20, 2019, which claims the benefit of U.S. Patent Application No. 62/897,897, filed on Sep. 9, 2019, and U.S. Patent Application No. 62/783,987, filed on Dec. 21, 2018, the contents of all of which above are entirely incorporate herein by reference. 
    
    
     FIELD 
     This disclosure relates generally to golf club heads and more particularly to putter-type golf club heads with adjustable fitting mechanisms. 
     BACKGROUND 
     Golf clubs can be fitted to an individual based upon the type of golf club, the individual&#39;s physical characteristics and/or the individual&#39;s playing style. Depending on the individual&#39;s physical characteristics and playing style, an individual can be fitted into a certain lie angle, loft angle, and/or head mass to provide optimum performance for the individual. Accordingly, each individual can require a golf club having a certain lie angle, loft angle, and head mass to fit the physical characteristics and playing style of the individual. 
     Typically, individuals turn to club fitters to learn more about their ideal putter configuration (loft angle, head mass, and/or lie angle). Conventional fitting putters used by club fitters typically require significant structural changes when compared to putter-type golf club heads used on a golf course. This negatively effects club head aesthetics, sight lines, and potentially the golfer&#39;s address position. This leads to individuals not being “fit” or optimized to the most suitable putter configuration. There is a need in the art for a fitting putter (that can alter the lie angle, loft angle, and head mass) to resemble a putter-type golf club head used on a golf course, such as a blade style putter. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    shows a rear view of an adjustable lie angle mechanism according to one embodiment. 
         FIG.  2    shows a heel view of the adjustable lie angle mechanism of  FIG.  1     
         FIG.  3    shows a rear view of the adjustable lie angle mechanism in a second lie angle state according to one embodiment. 
         FIG.  4    shows a heel view of the adjustable lie angle mechanism of  FIG.  3   . 
         FIG.  5    shows a heel view of an adjustable loft angle mechanism according to one embodiment. 
         FIG.  6    shows a rear view of the adjustable loft angle mechanism according to  FIG.  5   . 
         FIG.  7    shows a heel view of the adjustable loft angle mechanism in a second loft angle state. 
         FIG.  8    shows a rear view of the adjustable loft angle mechanism according to  FIG.  7   . 
         FIG.  9    shows a rear perspective view of an adjustable head mass mechanism according to one embodiment. 
         FIG.  10    shows a rear view of an adjustable head mass mechanism in a second putter mass configuration. 
         FIG.  11    shows a front exploded view of a putter-type golf club head according to one embodiment. 
         FIG.  12    shows a rear exploded view of the putter-type golf club head of  FIG.  11   . 
         FIG.  13    shows an assembled rear view of the putter-type golf club head of  FIG.  12   . 
         FIG.  14    shows a perspective exploded view of a hosel according to one embodiment. 
         FIG.  15    shows another perspective view of the hosel of  FIG.  14   . 
         FIG.  16    shows a toe perspective view of the putter-type golf club head according to one embodiment. 
         FIG.  17    shows a rear perspective view of the putter-type golf club head of  FIG.  16   . 
         FIG.  18    shows a front view of the hosel according to one embodiment. 
         FIG.  19    shows a rear exploded view of the putter-type golf club head according to one embodiment. 
         FIG.  20    shows a partial view of the loft arm according to one embodiment. 
         FIG.  21    shows another perspective view of  FIG.  18   . 
         FIG.  22    shows a close-up rear view of  FIG.  18   . 
         FIG.  23    shows a close-up partial view of  FIG.  21   . 
         FIG.  24    shows toe view of  FIG.  23   . 
         FIG.  25    shows a partial rear view of  FIG.  9   . 
         FIG.  26    shows a perspective toe view of  FIG.  9   . 
         FIG.  27    shows heel view of a loft arm according to one embodiment. 
         FIG.  28    shows a perspective view of a plunger according to one embodiment. 
         FIG.  29    shows a partial view of the adjustable loft angle mechanism in a first configuration according to one embodiment. 
         FIG.  30    shows a partial view of the adjustable loft angle mechanism in a second configuration according to one embodiment. 
         FIG.  31    shows a partial view of the putter-type golf club head according to one embodiment. 
         FIG.  32    shows a partial rear view of the adjustable lie angle mechanism in a first configuration according to one embodiment. 
         FIG.  33    shows a partial rear view of the adjustable lie angle mechanism in a second configuration according to one embodiment. 
         FIG.  34    shows an assembled front view of the putter-type golf club head of  FIG.  1   . 
         FIG.  35    shows an assembled heel view of the putter-type golf club head of  FIG.  34   . 
         FIG.  36    shows a front view of the putter-type golf club head according to another embodiment. 
         FIG.  37    shows a rear view of the putter-type golf club head of  FIG.  36   . 
         FIG.  38    shows a heel view of the putter-type golf club head of  FIG.  37   . 
     
    
    
     DESCRIPTION 
     Presented herein are golf club heads with adjustable fitting mechanisms. The golf club heads described herein can be configured to structurally resemble a putter, while independently adjusting one or more parameters of the golf club head. Altering one or more parameters of the golf club head (“club head”) can alter the configuration of the golf club head. Parameters that can alter the club head configuration can be lie angle, loft angle, head mass, or combinations thereof. 
     To adjust the one or more parameters of the golf club head, the golf club head comprises at least an adjustable lie angle mechanism, an adjustable loft angle mechanism, and an adjustable head mass mechanism. Each adjustable fitting mechanism (adjustable lie angle mechanism, adjustable loft angle mechanism, adjustable head mass mechanism) comprises one or more parts that is/are independent of the other adjustable fitting mechanism(s), and either directly or indirectly connects to a base or foundational piece. 
     The adjustable lie angle mechanism comprises a lie arm that attaches to the hosel body and generally extends in a heel-to-toe direction. The adjustable loft angle mechanism comprises a loft arm that generally extends in a top rail-to-sole direction and indirectly attaches to the hosel body. The adjustable head mass mechanism comprises an interchangeable rear ballast that extends substantially in a heel-to-toe direction. The hosel body and the adjustable head mass mechanism are attached and/or coupled to the club head body. This provides the opportunity for a user being fit to a putter-type golf club to maintain a similar address position, sight lines, and aesthetics as putter-type golf club heads used on golf courses. 
     The term or phrase “lie angle” used herein can be defined as being the angle between a golf shaft (not shown) and a playing surface once the sole contacts the playing surface. The lie angle of a golf club head can also be referred to as the angle formed by the intersection of the centerline of the golf shaft (not shown) and the playing surface when the sole of the golf club head is resting on the playing surface  106 . 
     The term or phrase “integral” used herein can be defined as two or more elements, if they are comprised of the same piece of material. As defined herein, two or more elements are “non-integral” if each element is comprised of a different piece of material. 
     The term or phrase “couple”, “coupled”, “couples”, and “coupling” used herein can be defined as connecting two or more elements, mechanically or otherwise. Coupling (whether mechanical or otherwise) can be for any length of time, e.g. permanent or semi-permanent or only for an instant. Mechanical coupling and the like should be broadly understood and include mechanical coupling of all types. The absence of the word “removably,” “removable,” and the like near the word “coupled,” and the like does not mean that the coupling, in question is or is not removable. 
     The term or phrase “head weight” or “head mass” used herein can be defined as the total mass or weight of the putter. 
     The term or phrase “attach”, “attached”, “attaches, and “attaching” used herein can be defined as connecting or being joined to something. Attaching can be permanent or semi-permanent. Mechanically attaching and the like should be broadly understood and include all types of mechanical attachment means. Integral attachment means should be broadly understood and include all types of integral attachment means that permanently connects two or more objects together. 
     The term or phrase “loft angle” used herein can be defined as the angle between the front striking surface and the golf shaft. In other embodiments, the loft angle can be defined herein as such: the front striking surface comprises a strike face center point and a loft plane. The strike face center point is equidistant from (1) the lower edge and upper edge of the strike face, as well as, (2) equidistant from the heel end and toe end of the putter-type golf club head. The loft plane is tangent to the strike face of the putter type golf club head. The golf shaft comprises a centerline axis that extends the entire length of the golf shaft. The loft angle is between the centerline axis of the golf shaft and the loft plane of the putter. The loft angle of the putter-type golf club head can also be defined herein as the angle between the front striking surface and the golf shaft (not shown) when a centerline of the golf shaft is generally vertical (i.e. forms a generally 90° angle with the playing surface). 
     The terms “first,” “second,” “third,” “fourth,” and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms “include,” and “have,” and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, device, or apparatus that comprises a list of elements is not necessarily limited to those elements but can include other elements not expressly listed or inherent to such process, method, system, article, device, or apparatus. 
     The terms “left,” “right,” “front,” “back,” “top,” “bottom,” “over,” “under,” and the like in the description and in the claims, if any, are used for descriptive purposes and not necessarily for describing permanent relative positions. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the apparatus, methods, and/or articles of manufacture described herein are, for example, capable of operation in other orientations than those illustrated or otherwise described herein. 
     The club head body described herein can further be defined by a coordinate system. The geometric center of the front striking surface defines an origin for a coordinate system having an x-axis, a y-axis, and z-axis, when the club head is at an address position. The x-axis extends through the geometric center of the front striking surface from near the heel end towards the toe end, and parallel to the playing surface. The y-axis extends through the geometric center of the front striking surface from near the top rail to the sole, and where the y-axis is perpendicular to the x-axis and the playing surface. The z-axis extends through the geometric center of the front striking surface towards the back surface. The z-axis is perpendicular to the x-axis and y-axis. 
     Before any embodiments of the disclosure are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. 
     I. Adjustable Fitting Mechanisms 
     Golf club heads having one or more adjustable fitting mechanisms are described herein. The parameters targeted for adjustment (but is not exhaustive) can be selected from the group consisting of the head mass (or head weight), lie angle, loft angle, and combinations thereof. The mechanisms for adjusting lie, adjusting loft, and/or adjusting head mass of the golf club head can be done through the adjustable lie angle mechanism, adjustable loft angle mechanism, and adjustable head mass mechanism, respectively. The golf club heads having an adjustable fitting mechanism can be a putter-type golf club head. 
     The putter-type golf club heads  100 , 200  described herein provides the ability to independently adjust one or more club head parameters. Specifically, the putter-type golf club heads can be configured to adjust lie angle, loft angle, and/or head mass. This is accomplished at least in part by creating a putter-type club head  100 ,  200  having: an adjustable lie angle mechanism  101 , an adjustable loft angle mechanism  102 , and an adjustable head mass mechanism  103 . 
     The components of the adjustable lie angle mechanism  101  that aids in adjusting the lie angle of the putter-type golf club head comprises: (1) a post  120  connected to the rear surface  118  of the club head body  112 , (2) a hosel comprising a hosel body  122 , and (3) a lie arm  121  configured to engage both the post  120  of the club head body  112  and the hosel body  122 . The lie arm  121  of the putter-type golf club head  100  is adapted to rotate around the outer circumferential surface of the post  120  in a top rail-to-sole direction (or about the z-axis). This type of rotation alters the lie angle of the golf club head  100 ,  200 . 
     The components of the adjustable loft angle mechanism  102  that aids in adjusting the loft angle of the putter-type golf club head comprises: (1) the hosel body  122 , (2) a hosel arm  127  extending from the hosel body  122  generally in a sole-to-top rail direction, and (3) a loft arm  128  rotatably connected to the hosel arm. The hosel arm  127  and the loft arm  128  are arranged to be pivotably and/or rotatably connected to each other to incrementally alter the loft angle of the golf club head. 
     In many embodiments, the putter-type golf club head  100 , 200  described herein mimics the design of a conventional blade style putter, while introducing the ability to independently adjust one or more club head parameters through the adjustable lie angle mechanism  101 , the adjustable loft angle mechanism  102 , and the adjustable head mass mechanism  103 . This beneficially enables the golfer being “fit” to address the golf ball, as if they were playing a round of golf, therefore having similar sight lines and club head aesthetics to ensure to a higher degree that the golfer is fitted to the correct lie angle, loft angle, and/or head mass. 
     Another beneficial aspect of the putter-type club head  100 ,  200  described herein is the ability to alter the lie angle and/or loft angle in a variety of increments. For example, the adjustable lie angle mechanism  101  and/or adjustable loft angle mechanism  102  can be adjusted in half degree or one-degree increments. Adjusting the lie angle or loft angle in half-degree or one-degree increments ensures that the user is not only “fit” into integer-type loft angle and lie angle configurations, but also non-integer type loft angle and lie angle configurations. 
     Another beneficial aspect of the putter-type golf club head  100 ,  200  described herein is the ability to adjust the head mass of the putter-type golf club head. Adjusting the head mass of putter-type golf club heads provides the ability to fit golfers and/or individuals to accommodate different putter stroke tempos. A golfer or individual with a slower stroke tempo can be fit into a heavier putter and conversely, an individual with a faster stroke tempo can be fit into a lighter putter. 
     At least some illustrated embodiments of a golf club head according to this invention are described below. Such apparatus can include all or some of the above described components, features, and benefits. 
     II. Putter-Types Gof Club Heads Having Adjustable Fitting Mechanisms 
     In many embodiments, the golf club head is a putter-type golf club head (the putter type golf club head  100  and  200 ).  FIGS.  1 - 38    illustrates exemplary embodiments of putter-type golf club heads having one or more adjustable fitting mechanisms. Specifically, in many embodiments, the putter-type golf club head can adjust one or more of the head mass (or head weight), the lie angle, and/or the loft angle. The putter-type golf club head can be a mallet-type putter head, mid-mallet type putter head, a blade type putter head, a high MOI putter head, or any other putter-type golf club head. 
     1. Loft Angle 
     In many embodiments, the putter-type golf club head (hereafter “golf club head” or “club head”) can have a loft angle less than 10 degrees. In many embodiments, the loft angle of the club head can be between 0 and 5 degrees, between 0 and 6 degrees, between 0 and 7 degrees, or between 0 and 8 degrees. For example, the loft angle of the club head can be less than 10 degrees, less than 9 degrees, less than 8 degrees, less than 7 degrees, less than 6 degrees, or less than 5 degrees. For further example, the loft angle of the club head can be 0-degree, 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, or 10 degrees. 
     2. Weight 
     In many embodiments, the putter-type golf club head can have a weight that ranges between 320 and 385 grams. In other embodiments, the putter-type golf club head can range between 320 grams-325 grams, 325 grams-330 grams, 330 grams-335 grams, 335 grams-340 grams, 340 grams-345 grams, 345 grams-350 grams, 350 grams-355 grams, 355 grams-360 grams, 360 grams-365 grams, 365 grams-370 grams, 370 grams-375 grams, 375 grams-380 grams, or 380 grams-385 grams. In some embodiments, the weight of the putter-type golf club head can be 320 grams, 321 grams, 322 grams, 323 grams, 324 grams, 325 grams, 326 grams, 327 grams, 328 grams, 329 grams, 330 grams, 331 grams, 332 grams, 333 grams, 334 grams, 335 grams, 336 grams, 337 grams, 338 grams, 339 grams, 340 grams, 341 grams, 342 grams, 343 grams, 344 grams, 345 grams, 346 grams, 347 grams, 348 grams, 349 grams, 350 grams, 351 grams, 352 grams, 353 grams, 354 grams, 355 grams, 356 grams, 357 grams, 358 grams, 359 grams, 360 grams, 361 grams, 362 grams, 363 grams, 364 grams, 365 grams, 366 grams, 367 grams, 368 grams, 369 grams, 370 grams, 371 grams, 372 grams, 373 grams, 374 grams, 375 grams, 376 grams, 377 grams, 378 grams, 379 grams, 380 grams, 381 grams, 382 grams, 383 grams, 384 grams, or 385 grams. 
     3. Material 
     The material of the putter-type golf club head can be constructed from any material used to construct a conventional golf club head. For example, the material of the putter-type golf club head can be constructed from any one or combination of the following: 8620 alloy steel, S25C steel, carbon steel, maraging steel, 17-4 stainless steel, 1380 stainless steel, 303 stainless steel, stainless steel alloys, tungsten, aluminum, aluminum alloys, ADC-12, titanium, titanium alloys, or any metal for creating a golf club head. In many embodiments, the putter-type golf club head is constructed from stainless-steel. 
     4. Composition of Putter-Type Golf Club Head 
     In many embodiments, the putter-type golf club head comprises a club head body  112 . The club head body  112  comprises a toe end  113 , a heel end  114 , a top rail  115 , a sole  116 , a front striking surface  117 , a rear surface  118 , and a back surface  119 . The front striking surface  117  provides a striking surface for striking a golf ball (not shown). The rear surface  118  is rearwardly spaced from the front striking surface  117 . The back surface  119  is opposite or distal from the front striking surface  117  and the rear surface  118 . The sole  116  is defined as being between the back surface  119  and the front striking surface  117 . The top rail  115  can be formed opposite the sole  116 . The front striking surface  117  is defined by a heel end  114  and a toe end  113 , which is opposite the heel end  114 . 
     In further embodiments, the club head body  112  comprises a post  120 . The post  120  extends from the rear surface  118  of the club head body towards the back surface  119  of the club head body  112 . In many embodiments, the post  120  is integrally formed to the club head body  112  (or attaches or couples) to the club head body  112 . Preferably, the geometry of the post  120  is in the form of a tubular or cylindrical elongation to enable a component of the adjustable lie angle mechanism  101  to slide over and reside on the outer circumferential surface of the post  120 . When a component of the adjustable lie angle mechanism  101 , for example, a lie arm  121  slides over and resides on the outer circumferential surface of the post  120 , this effectively defines a pivot surface for the adjustable lie angle mechanism  101  to rotate about. Thereby, altering the lie angle of the putter-type golf club head. 
     III. Introduction—Adjustable Fitting Mechanisms 
       FIGS.  1 - 10    illustrates various embodiments of the golf club head comprising one or more adjustable fitting mechanism(s) (i.e. an adjustable lie angle mechanism  101 , an adjustable loft angle mechanism  102 , an adjustable head mass mechanism  103 , etc.). The mechanisms for adjustable lie  101 , adjustable loft  102 , and adjustable head mass  103  can be independently adjusted or altered. Each adjustable fitting mechanism comprises two figures, which illustrates a first configuration of the putter-type golf club head  100  and upon adjustment by the one or more adjustable fitting mechanism(s)  101 ,  102 ,  103 , a second club head configuration. 
     1. Introduction—Adjustable Lie Angle Mechanism 
     For example,  FIGS.  1 - 4    provides an exemplary embodiment of the golf club head comprising an adjustable lie angle mechanism  101  changing from a first configuration to a second configuration. A rear and side view of a first lie angle state  104  is shown in  FIGS.  1  and  2   .  FIGS.  3  and  4    provides an illustration of the lie angle changing from the first lie angle state  104  to a second lie angle state  105  due to the adjustable lie angle mechanism  101 . This second lie angle state  105  changes the configuration of the putter-type golf club head to a second club head configuration. As seen in reference to  FIGS.  3  and  4   , the lie angle of the golf club head can be adjusted by altering the position of the adjustable lie angle mechanism  101  in a top rail-to-sole direction (or rotating about the z-axis). 
     2. Introduction—Adjustable Loft Angle Mechanism 
     Another example of the golf club head comprising one or more adjustable fitting mechanisms is illustrated in  FIGS.  5 - 8   .  FIGS.  5 - 8    provides an exemplary embodiment of an adjustable loft angle mechanism  102  changing from a first configuration to a second configuration. Rear and side views of a first loft angle state  107  is shown in  FIGS.  5  and  6   . Rear and side views of a second loft angle state  108  is shown in  FIGS.  7  and  8   .  FIGS.  7  and  8    provide an illustration of the loft angle changing from the first loft angle state  107  to a second loft angle state  108  due to the adjustable loft angle mechanism  102 . The second loft angle state  108  changes the configuration of the putter-type golf club head to a second club head configuration. Referencing  FIGS.  5 - 8   , the loft angle of the putter-type golf club head can be adjusted by altering the position of the adjustable loft angle mechanism  102  in a front-to-rear direction (or rotating about the x-axis). 
     3. Introduction—Adjustable Head Mass Mechanism 
     Another example of the golf club head comprising one or more adjustable fitting mechanisms is illustrated in  FIGS.  9  and  10   .  FIGS.  9  and  10    provide an exemplary embodiment of an adjustable head mass mechanism  103  changing from a first configuration to a second configuration.  FIG.  9   . is an exemplary embodiment of an adjustable head mass mechanism  103  in a first putter mass configuration  109 .  FIG.  10    provides an illustration of the head mass changing from a first putter mass configuration  109  to a second putter pass configuration  110  due to the adjustable head mass mechanism  103 . The second putter mass configuration  110  changes the configuration of the putter-type golf club head to a second club head configuration. As seen in  FIG.  10   , the head mass of the putter type golf club head  100  can be adjusted by interchanging the weight of the putter type golf club through a plurality of interchangeable rear ballasts  111  configured to have different weights or masses. 
     4. Component of Adjustable Lie Angle Mechanism—Lie Arm 
     As described, one of the adjustment mechanisms can be a lie angle adjustment mechanism. One element or component of the adjustable lie angle mechanism  101  is a lie arm  121  that extends generally in a heel-to-toe direction (see  FIG.  13   ). The lie arm  121  is configured to incrementally adjust a lie angle of the putter-type golf club head  100  when the lie arm  121  rotates around the outer circumferential surface of the post  120 . The lie angle of the putter-type golf club head  100  can be adjusted between 60 degrees and 84 degrees. In many embodiments, the lie angle of the putter-type golf club head  100  can be adjusted between 60 degrees-64 degrees, 64 degrees-68 degrees, 68 degrees-72 degrees, 72 degrees-76 degrees, 76 degrees-80 degrees, or 80 degrees-84 degrees. In other embodiments, the lie angle of the putter type golf club head  100  can be adjusted to 60 degrees, 61 degrees, 62 degrees, 63 degrees, 64 degrees, 65 degrees, 66 degrees, 67 degrees, 68 degrees, 69 degrees, 70 degrees, 71 degrees, 72 degrees, 73 degrees, 74 degrees, 75 degrees, 76 degrees, 77 degrees, 78 degrees, 79 degrees, 80 degrees, 81 degrees, 82 degrees, 83 degrees, or 84 degrees. In a preferred embodiment, the lie angle of the putter-type club head  100  can be adjusted between 66 degrees and 74 degrees in 0.5-degree or 1-degree increments (i.e. 66°, 66.5°, 67°, 67.5°, 68°, 68.5°, 69°, 69.5°, 70°, 70.5°, 71°, 71.5°, 72°, 72.5°, 73°, 73.5°, or 74°). 
     In some of the embodiments, the lie arm  121  is either coupled or integrally joined to a hosel body  122 . Both coupling and integrally joining the lie arm  121  to the hosel body  122  presents beneficial advantages that will be discussed below. 
     Coupling or attaching the lie arm  121  to the hosel body  122  reduces manufacturing material waste, as the hosel body  122  and lie arm  121  can be manufactured as separate components (i.e. separate CNC milling paths). Integrally forming the lie arm  121  to the hosel body  122  permits easier assembly, as less components are required (i.e. less components to connect to each other). 
     The lie arm  121  comprises a first end  123  (“lie arm first end”  123 ), a center portion  124  (“lie arm center portion)”, and a second end  125  (“lie arm second end”). The lie arm first end  123  is closer to the heel end  114  of the club head body  112  (relative to the lie arm second end  125 ) and connects to the hosel body  122  (e.g. through coupling means or integral joining means). Further, coupling (Embodiment I) or integrally joining (Embodiment II) the first end  123  of the lie arm  121  and the hosel body  122  together will be discussed in greater detail below. The second end  125  of the lie arm  121  is closer to the toe end  113  of the club head body  112  (relative to the lie arm first end  123 ) and forms a receiving geometry  126  that is complimentary with the geometry of the post  120 . The arrangement of the receiving geometry  126  of the lie arm  121  and the post  120  enables the lie arm  121  to rotate and/or pivot around the post  120  (i.e. altering the lie angle of the putter-type golf club head). The lie arm center portion  124  is in between the lie arm first end  123  and the lie arm second end  125 . 
     In some embodiments, the lie arm  121  comprises a length, a width, and a height. The length of the lie arm  121  is measured in a direction extending from the heel end  114  to the toe end  113  of the club head body  112 . The width of the lie arm  121  is measured in a direction extending from the front striking surface  117  to the back surface  119  of the club head body  112 . The height of the lie arm is measured in a direction extending in the top rail  115  to sole  116  direction. The dimensional ranges for the length, the width, and the height of the lie arm  121  will be discussed below. 
     The length of the lie arm  121  is smaller than the total length of the club head body  112 . The length of the lie arm  121  can range between 0.25 inch and 5 inches. In many embodiments, the length of the lie arm  121  can range between 0.25 inch-0.50 inch, 0.50 inch-0.75 inch, 0.75 inch-1.0 inch, 1.0 inch-1.25 inch, 1.25 inch-1.5 inch, 1.5 inch-2.0 inch, 2.0 inch-2.5 inch, 2.5 inch-3.0 inch, 3.0 inch-3.5 inch, 3.5 inch-4.0 inch, 4.0 inch-4.5 inch, or 4.5 inch-5.0 inch. In alternative embodiments, the length of the lie arm  121  can be approximately less than 5 inches, less than 4.5 inches, less than 4 inches, less than 3.5 inches, less than 3 inches, less than 2.5 inches, less than 2.0 inches, less than 1.5 inches, less than 1 inch, or less than 0.5 inch. In specific embodiments, the length of the lie arm  121  can be approximately 0.25 inch, 0.50 inch, 0.75 inch, 1.0 inch, 1.25 inches, 1.50 inches, 1.75 inches, 2.0 inches, 2.25 inches, 2.50 inches, 2.75 inches, 3.0 inches, 3.25 inches, 3.5 inches, 3.75 inches, 4.0 inches, 4.25 inches, 4.5 inches, 4.75 inches, or approximately 5.0 inches. The length of the lie arm  121  can vary based upon the desired adjustment resolution. For example, a lie arm  121  that is longer in length permits greater adjustment resolution as a user can more easily control the rate at which the lie arm  121  rotates around the post  120  (i.e. controlling the rate at which the lie angle of the putter-type golf club head  100  changes). 
     As described above, the second end  125  of the lie arm  121  forms and/or defines the receiving geometry  126 . The receiving geometry  126  of the lie arm  121  can be complimentary with the geometry of the post  120 . In many embodiments, a portion of the receiving geometry  126  can be defined by an indentation. The depth of the indentation is similar to the depth of the post  120  (which is measured in a direction extending between the front striking surface and back end of the club head body). This ensures that enough surface area of the lie arm&#39;s receiving geometry  126  engages or contacts the outer surface of the post  120  to create a suitable rotatable connection means. The arrangement of the lie arm receiving geometry  126 , the lie arm  121 , and the post geometry forms a fulcrum. 
     The material of the lie arm  121  can be constructed from any material used to construct a conventional club head body  112 . For example, the material of the lie arm  121  can be constructed from any one or combination of the following: 8620 alloy steel, S25C steel, carbon steel, maraging steel, 17-4 stainless steel, 1380 stainless steel, 303 stainless steel, stainless steel alloy, tungsten, aluminum, aluminum alloy, ADC-12, titanium, titanium alloy, or any metal for creating a golf club head  100 . In many embodiments, the lie arm  121  is made of a stainless-steel alloy or 303 stainless steel. 
     5. Adjustable Loft Angle Mechanism—Hose/Arm 
     As discussed above, the adjustable loft angle mechanism  102  comprises a hosel arm  127 . The hosel arm  127  extends from the hosel body  122  in a generally top rail-to-sole direction. The hosel arm  127  comprises: a length, a width, and a height. The hosel arm  127  can integrally extend from the hosel body  122  or can be mechanically coupled to the hosel body  122 . Similarly, as described above, the length of the hosel arm  127  is measured in a direction extending from the heel end  114  to the toe end  113  of the club head body  112  at an address position. The width of the hosel arm  127  is measured in a direction extending from the front striking surface  117  to the back surface  119  of the club head body  112  at an address position. The height of the hosel arm  127  is measured in a direction extending from the top rail  115  to the sole  116  of the club head body  112  at an address position. 
     The length, the width, and the height of the hosel arm  127  can vary to achieve desired mechanical properties. The length of the hosel arm  127  can vary to resist potential bending moments and stresses imposed on the hosel arm  127  that is induced by the user. For example, the length of the hosel arm  127  can be lengthened to prevent permanent deformation. The length of the hosel arm  127  can range between 0.09 inch to 0.5 inch. In many embodiments, the length of the hosel arm  127  ranges between 0.09 inch to 0.12 inch, 0.12 inch to 0.15 inch, 0.15 inch-0.18 inch, 0.18 inch-0.21 inch, 0.21 inch-0.24 inch, 0.24 inch-0.27 inch, 0.27 inch-0.30 inch, 0.30 inch-0.33 inch, 0.33 inch-0.36 inch, 0.36 inch-0.39 inch, 0.39 inch-0.42 inch, 0.42 inch-0.45 inch, 0.45 inch-0.48 inch, or 0.48-0.5 inch. In specific embodiments, the length of the hosel arm  127  can be approximately 0.193 inches. 
     The width of the hosel arm  127  can vary to decrease the potential of excessive wearing, for example, warping. The width of the hosel arm  127  can vary between 0.20 inch and 1.0 inch. In many embodiments, the width of the hosel arm  127  can be between 0.20 inch-0.25 inch, 0.25 inch-0.30 inch, 0.30 inch-0.35 inch, 0.35 inch-0.40 inch, 0.40 inch-0.45 inch, 0.45 inch-0.50 inch, 0.50 inch-0.55 inch, 0.55 inch-0.60 inch, 0.60 inch-0.65 inch, 0.65 inch-0.70 inch, 0.70 inch-0.75 inch, 0.75 inch-0.80 inch, 0.80 inch-0.85 inch, 0.85 inch-0.90 inch, 0.90 inch-0.95 inch, or 0.95 inch-1.00 inch. In specific embodiments, the width of the hosel arm  127  can be approximately 0.250-inch, 0.350-inch, 0.450-inch, 0.550-inch, 0.650-inch, 0.750-inch, 0.850-inch, or 0.950-inch. 
     The height of the hosel arm  127  is preferably less than the height of a loft arm  128 . The loft arm  128  pivotably connects to the hosel arm  127 . This pivotable connection means alters the loft angle of the putter-type golf club head  100 . In many embodiments, the structural arrangement of the loft arm  128  and hosel arm  127  are configured to mimic a blade style hosel design (hereafter “hosel”). This arrangement of the loft arm  128  and hosel arm  127  beneficially reduces the bulkiness of the hosel to create a compact hosel design. The height of the hosel arm  127  can vary according to the height of the loft arm  128 . 
     The height of the hosel arm  127  can range between 0.5 inch and 4 inches. In other embodiments, the height of the hosel arm  127  can range between 0.5 inches-0.75 inches, 0.75 inches-1.0 inch, 1.0 inch-1.25 inches, 1.25 inches-1.50 inches, 1.50 inches-1.75 inches, 1.75 inches-2.0 inches, 2.0 inches-2.25 inches, 2.25 inches-2.50 inches, 2.50 inches-2.75 inches, 2.75 inches-3.0 inches, 3.0 inches-3.25 inches, 3.25 inches-3.50 inches, 3.50 inches-3.75 inches, or 3.75 inches-4.0 inches. In alternative embodiments, the height of the hosel arm  127  can be 0.5-inch, 1.0 inch, 1.5 inches, 2.0 inches, 2.5 inches, 3.0 inches, 3.5 inches, or 4 inches. 
     The material of the hosel arm  127  can be constructed from any material used to construct a conventional club head body  112 . For example, the material of the hosel arm  127  can be constructed from any one or combination of the following: 8620 alloy steel, S25C steel, carbon steel, maraging steel, 17-4 stainless steel, 1380 stainless steel, 303 stainless steel, stainless steel alloy, tungsten, aluminum, aluminum alloy, ADC-12, titanium, titanium alloy, or any metal for creating a golf club head. In many embodiments, the hosel arm  127  is made of a stainless-steel alloy or 303 stainless steel. 
     6. Adjustable Loft Angle Mechanism—Loft Arm 
     As discussed above, the adjustable loft angle mechanism  102  further comprises a loft arm  128 . The loft arm  128  is pivotally connected to the hosel arm  127  to alter the loft angle of the putter-type golf club head  100 ,  200 . In many embodiments, the loft arm  128  is configured to couple to a golf shaft (not shown). The loft arm  128  comprises a first end  129  (“loft arm first end”) and a second end  130  (“loft arm second end”). The loft arm first end  129  is spaced from the loft arm second end  130 . The loft arm second end  130  is positioned closer to the hosel body  122  than the loft arm first end  129 . Specifically, in many of the illustrated embodiments, the hosel arm  127  and the loft arm  128  are pivotably engaged to one another at the hosel arm second end  131  and the loft arm second end  130 , respectively. The loft arm  128  can rotate about the hosel arm  127  about the x-axis. 
     This type of pivotably engaged connection means between the loft arm  128  and the hosel arm  127  permits an incremental change in the loft angle of the golf club head  100 . The loft angle of the golf club head is adjusted when the loft arm  128  pivots about the hosel arm  127  in a front striking surface to back surface direction (or about the x-axis). In general, and more preferably, the loft arm  128  is positioned above a portion of the hosel body  122 . This enables the loft arm  128  to freely rotate or pivot about the hosel arm second end  131 , thereby allowing the loft angle of the putter-type golf club head  100  to be incrementally adjusted. 
     The loft angle of the putter-type golf club head  100  can be adjusted between 0 and 10 degrees. In many embodiments, the loft angle of the putter-type golf club head  100  can be adjusted between 0 degrees-1 degrees, 1 degree-2 degrees, 2 degrees-3 degrees, 3 degrees-4 degrees, 4 degrees-5 degrees, 5 degrees-6 degrees, 6 degrees-7 degrees, 7 degrees-8 degrees, 8 degrees-9 degrees, or 9 degrees-10 degrees. In other embodiments, the loft angle of the putter type golf club head  100  can be adjusted to 0 degrees, 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, or 10 degrees. In a preferred embodiment, the loft angle of the putter-type club head  100  can be adjusted between 0 degrees and 5 degrees in 0.25-degree or 1-degree increments (i.e. 0°, 0.25°, 0.50°, 0.75°, 1°, 1.25°, 1.5°, 1.75°, 2.0°, 2.25°, 2.5°, 2.75°, 3°, 3.25°, 3.5°, 3.75°, 4°, 4.25°, 4.5°, 4.75°, 5°). 
     7. Adjustable Lie Angle Mechanism, Adjustable Loft Angle Mechanism—Hosel Body 
     The adjustable lie angle mechanism  101  and adjustable loft angle mechanism  102  can comprise a hosel body. The hosel body  122  can be a component of both the adjustable lie angle mechanism  101  and adjustable loft angle mechanism  102  that indirectly connects the hosel arm  127 , loft arm  128 , and the lie arm  121  to one another. In many embodiments, the hosel body  122  provides a foundational piece or base structure that aids in coordinating, aligning, and/or connecting the hosel arm  127 , loft arm  128 , and lie arm  121  to a single region or portion of the hosel  172 . In other words, the hosel body  122  efficiently connects the adjustable lie angle mechanism  101  to the adjustable loft angle mechanism  102 , while still enabling independent adjustment of one or more club head parameters (i.e. loft angle and lie angle). 
     In many embodiments, the hosel body  122  can take the form of a substantially rectangular shape. In other embodiments, the hosel body  122  can be substantially square, rectangular, polygonal, semi-circular, curvilinear, or combinations thereof. In general, and more preferably, the hosel body  122  is substantially rectangular. Having a hosel body  122  that is substantially rectangular creates a flat matting surface for the hosel body  122  to sit flush against the club head body  112 . 
     The material of the hosel body  122  can be constructed from any material used to construct a conventional club head body  112 . For example, the material of the hosel body  122  can be constructed from any one or combination of the following: 8620 alloy steel, S25C steel, carbon steel, maraging steel, 17-4 stainless steel, 1380 stainless steel, 303 stainless steel, stainless steel alloy, tungsten, aluminum, aluminum alloy, ADC-12, titanium, titanium alloy, or any metal for creating a golf club head. In many embodiments, the hosel body  122  is made of a stainless-steel alloy or 303 stainless steel. 
     I. Embodiment I—Putter Type Club Head Having Lie Angle Mechanism and Loft Angle Mechanism Associated with Hosel Body 
     Putter-Type Golf Club Head—Club Head Body 
       FIGS.  1 - 35    illustrates an embodiment according to this invention. More particularly,  FIGS.  1 - 35    illustrates an example of a putter-type golf club head  100  to be used by a golfer (not shown) for identifying the golfer&#39;s preferred lie, loft, and preferred weight of the putter for a consistent, and accurate putting stroke. The putter-type golf club head  100  comprises a club head body  112 . The club head body  112  comprises a front striking surface  117 , a rear surface  118  spaced from the front striking surface  117 , a back surface  119  opposite the front striking surface  117 , a sole  116  extending between the front striking surface  117  and the back surface  119 , a top rail  115  opposite the sole  116 , and the front striking surface  117  disposed between the heel end  114  and the toe end  113 . 
     The rear surface  118 , the sole  116 , and the top rail  115  of the putter-type golf club head can define a dual recess arrangement  132  having a first shallow recess  133  and a second deeper recess  134 . The first shallow recess  133  can form the second deeper recess  134 . The first shallow recess  133  is recessed inwardly towards the front striking surface approximately 0.02 inches from the rear surface  118 . In other embodiments, the first shallow recess  133  can be recessed inwardly from the rear surface  118  and vary in depth between 0.01 inch to approximately 0.75 inch. Specifically, in many embodiments, the first shallow recess  133  can range between 0.01 inch-0.05 inch, 0.05 inch-0.10 inch, 0.10 inch-0.15 inch, 0.15 inch-0.20 inch, 0.20 inch-0.25 inch, 0.25 inch-0.30 inch, 0.30 inch-0.35 inch, 0.35 inch-0.40 inch, 0.40 inch-0.45 inch, 0.45 inch-0.50 inch, 0.50 inch-0.55 inch, 0.55 inch-0.60 inch, 0.60 inch-0.65 inch, 0.65 inch-0.70 inch, or 0.70 inch-0.75 inch. 
     As mentioned above, the first shallow recess  133  forms the second deeper recess  134 . The second deeper recess  134  has a greater depth than the first shallow recess  133 . With continued reference to  FIG.  12   , the depth of the second deeper recess  134  is approximatively 0.28 inches from the rear surface  118 . In other embodiments, the second deeper recess  134  can be recessed inwardly from the rear surface  118  towards the front striking surface  117  and vary in depth between 0.02 inch and 1.0 inch. In alternative embodiments, the second deeper recess  134  depth can range between 0.02 inch to 0.12 inch, 0.12 inch-0.22 inch, 0.22 inch-0.32 inch, 0.32 inch-0.42 inch, 0.42 inch-0.52 inch, 0.52 inch-0.62 inch, 0.62 inch-0.72 inch, 0.72 inch-0.82 inch, 0.82 inch-0.92 inch, or 0.92 inch to approximately 1.0 inch. As will be described in more detail below, the second deeper recess  134  provides a puzzle-locking geometry to secure the club head components and/or adjustable fitting mechanisms  101 ,  102 ,  103  to the club head body  112 . 
     Post of Club Head Body 
     Referencing  FIG.  12    and  FIG.  19   , this embodiment illustrates the putter-type clubhead further comprising a post  120  extending from a wall  135  proximal to the front striking surface  117  (can also be referred to as “bottom wall”  135 ) of the second deeper recess  134 . The post  120  can be integrally connected to the bottom wall  135  of the second deeper recess  134  and extends generally in a direction from the front striking surface  117  to the back surface  119 . As illustrated in this embodiment, the geometry of the post  120  can be substantially cylindrical. However, in other alternative embodiments, it can be any curvilinear geometry that permits rotation of a lie arm  121  along the outer peripheral surface of the post  120  (or about the z-axis). The post  120  is configured to receive the receiving geometry  126  of the lie arm  121 . Upon engagement of the receiving geometry  126  resting upon the outer surface of the post  120 , the lie arm  121  can rotate. Thereby, affecting the lie angle of the putter-type golf club head  100 . 
     The post  120  further can be defined by having an axial surface  136  (“rear post surface”), a post diameter, and a post depth. A portion of the axial surface  136  forms an aperture  137  (hereafter “post aperture”  137 ) that can or can not be threaded. In many embodiments and as illustrated in  FIG.  12   , the post aperture  137  can be threaded, centrally located on the axial surface  136 , and has a depth extending in the back surface  119  to the front striking surface  117  direction. 
     The post aperture  137  can be configured to receive a fastener  138 . The diameter and depth of the post aperture  137  can vary according to the dimensional characteristics of the fastener  138 . In this specific embodiment, the diameter of the post aperture  137  is approximately 0.107 inch and the depth of the post aperture  137  is approximately 0.170 inch. The fastener  138  is inserted through the receiving geometry  126  of the lie arm  121  and configured to threadably engage the post aperture  137 . This clamp and braces the lie arm  121  to the club head body  112 . 
     The diameter of the post  120  can vary to have a smaller diameter (i.e. more compact design) or a larger diameter (i.e. to control adjust resolution). The diameter of the post  120  can vary between 0.05 inch and 1 inch. In many embodiments, the diameter of the post  120  can range between 0.05 inch to 0.10 inch, 0.10 inch-0.15 inch, 0.15 inch-0.20 inch, 0.20 inch-0.25 inch, 0.25 inch-0.30 inch, 0.30 inch-0.35 inch, 0.35 inch-0.40 inch, 0.40 inch-0.45 inch, 0.45 inch-0.50 inch, 0.50 inch-0.55 inch, 0.55 inch-0.60 inch, 0.60 inch-0.65 inch, 0.65 inch-0.70 inch, 0.70 inch-0.75 inch, 0.75 inch-0.80 inch, 0.80 inch-0.85 inch, 0.85 inch-0.90 inch, 0.90 inch-0.95 inch, or 0.95 inch-1.0 inch. In specific embodiments, the diameter of the post  120  can be 0.100 inch, 0.110 inch, 0.120 inch, 0.130 inch, 0.140 inch, 0.150 inch, 0.160 inch, 0.170 inch, 0.180 inch, 0.190 inch, 0.200 inch, 0.210 inch, 0.220 inch, 0.230 inch, 0.240 inch, 0.250 inch, 0.260 inch, 0.270 inch, 0.280 inch, 0.290 inch, 0.300 inch, 0.310 inch, 0.320 inch, 0.330 inch, 0.340 inch, 0.350 inch, 0.360 inch, 0.370 inch, 0.380 inch, 0.390 inch, or approximately 0.400 inch. 
     Additionally, as mentioned above, the depth of the post&#39;s  120  outer peripheral surface can vary according to the depth of the lie arm&#39;s  121  receiving geometry  126 . Requiring that the depth of the post  120  and receiving geometry  126  of the lie arm  121  are similar ensures that the lie arm  121  engages enough of the outer peripheral surface area of the post&#39;s  120  exterior sidewall to enable sufficient rotation. The depth of the post  120  can vary between 0.05 inch and 1.5 inches. In many embodiments, the depth of the post  120  can range between 0.05 inch to 0.10 inch, 0.10 inch-0.15 inch, 0.15 inch-0.20 inch, 0.20 inch-0.25 inch, 0.25 inch-0.30 inch, 0.30 inch-0.35 inch, 0.35 inch-0.40 inch, 0.40 inch-0.45 inch, 0.45 inch-0.50 inch, 0.50 inch-0.55 inch, 0.55 inch-0.60 inch, 0.60 inch-0.65 inch, 0.65 inch-0.70 inch, 0.70 inch-0.75 inch, 0.75 inch-0.80 inch, 0.80 inch-0.85 inch, 0.85 inch-0.90 inch, 0.90 inch-0.95 inch, or 0.95 inch-1.0 inch. In specific embodiments, depth of the post can be approximately 0.80-inch, 0.90-inch, 1.0-inch, 1.10-inch, 1.20 inch, 1.30 inch, 1.40 inch, 1.50 inch, 1.60 inch, 1.70 inch, 1.80 inch, 1.90 inch, 2.00 inch, 2.10 inch, or 2.50 inches. 
     The location or position of the post  120  can be positioned anywhere on the rear surface  118  of the club head body  112 . Specifically, in some embodiments, the post  120  can be centrally positioned between the heel end  114  and toe end  113  of the club head body  112 . In other embodiments, the post  120  can be positioned anywhere on the rear surface  118  of the club head body  112  between the toe end  113  and heel end  114 . For example, the post  120  can be positioned proximal to the toe end  113  or the post  120  can be positioned proximal to the heel end  114 . In other embodiments, the post  120  can be located on the rear surface  118  of the club head body  112  between the heel end  114  and a geometric center of the front striking surface  117  or located between the toe end  113  and the geometric center of the front striking surface  117 . In alternative embodiments, the post  120  can be positioned directly rearward of the geometric center of the front striking surface  117 . 
     As described above, the diameter of the post aperture  137  can vary according to the geometry of the fastener  138 . The diameter of the post aperture  137  can vary between 0.05 inch and 1.5 inches. In many embodiments, the diameter of the post aperture  137  can range between 0.05 inch to 0.10 inch, 0.10 inch-0.15 inch, 0.15 inch-0.20 inch, 0.20 inch-0.25 inch, 0.25 inch-0.30 inch, 0.30 inch-0.35 inch, 0.35 inch-0.40 inch, 0.40 inch-0.45 inch, 0.45 inch-0.50 inch, 0.50 inch-0.55 inch, 0.55 inch-0.60 inch, 0.60 inch-0.65 inch, 0.65 inch-0.70 inch, 0.70 inch-0.75 inch, 0.75 inch-0.80 inch, 0.80 inch-0.85 inch, 0.85 inch-0.90 inch, 0.90 inch-0.95 inch, or 0.95 inch-1.0 inch. In specific embodiments, the diameter of the post aperture  137  can be 0.080 inch, 0.081 inch, 0.082 inch, 0.083 inch, 0.084 inch, 0.085 inch, 0.086 inch, 0.087 inch, 0.088 inch, 0.089 inch, 0.090 inch, 0.091 inch, 0.092 inch, 0.093 inch, 0.094 inch, 0.095 inch, 0.096 inch, 0.097 inch, 0.098 inch, 0.099 inch, 0.100 inch, 0.101 inch, 0.102 inch, 0.103 inch, 0.104 inch, 0.105 inch, 0.106 inch, 0.107 inch, 0.108 inch, 0.109 inch, 0.110 inch, 0.111 inch or 0.115 inch. 
     Additionally, as described above, the depth of the post aperture  137  can vary according to the geometry characteristics of the fastener  138 . The depth of the post aperture  137  can vary between 0.05 inch and 1.0 inches. In many embodiments, the depth of the post aperture  137  can range between 0.05 inch to 0.10 inch, 0.10 inch-0.15 inch, 0.15 inch-0.20 inch, 0.20 inch-0.25 inch, 0.25 inch-0.30 inch, 0.30 inch-0.35 inch, 0.35 inch-0.40 inch, 0.40 inch-0.45 inch, 0.45 inch-0.50 inch, 0.50 inch-0.55 inch, 0.55 inch-0.60 inch, 0.60 inch-0.65 inch, 0.65 inch-0.70 inch, 0.70 inch-0.75 inch, 0.75 inch-0.80 inch, 0.80 inch-0.85 inch, 0.85 inch-0.90 inch, 0.90 inch-0.95 inch, or 0.95 inch-1.0 inch. In specific embodiments, the depth of the post aperture  137  can be 0.090 inch, 0.100 inch, 0.110 inch, 0.120 inch, 0.130 inch, 0.140 inch, 0.150 inch, 0.160 inch, 0.170 inch, 0.180 inch, 0.190 inch, 0.200 inch, 0.210 inch, or 0.250 inch. 
     Adjustable Lie Angle Mechanism 
     a. Mechanical Connection of the Lie Arm to the Hosel Body 
     As discussed above, the putter-type club head can comprise an adjustable lie angle mechanism  101 . The lie angle mechanism comprises components associated with the hosel body  122  for the putter-type club head. One of the components of the adjustable lie angle mechanism  101  is the lie arm  121 . The lie arm  121  couples to both the post  120  of the club head body  112  and the hosel body  122  (see  FIGS.  11 ,  12 ,  14 , and  15   ). This type of connection means between the lie arm  121 , post  120 , and hosel body  122  aids in forming some elements of the adjustable lie angle mechanism  101 . As described above, and for further reiteration, the receiving geometry  126  engages and rest upon the outer surface of the post  120 . To alter the lie angle of the club head, since the lie arm  121  and hosel body  122  are coupled to each other, one of the lie arm  121  or hosel body  122  needs to be translated in a top rail-to-sole direction (or rotated about the z-axis). Thereby, causing the receiving geometry  126  of the lie arm  121  to rotate around the outer surface of the post  120 , thus causing the lie angle to change. 
     In some embodiments, the hosel body  122  further includes a hosel tab  162  (see  FIG.  35   ). The hosel tab can be integrally connected to the hosel body  122 . The hosel tab  162  extends in a heel end  114  to toe end  113  direction. In some embodiments, the hosel tab  162  is partially exposed at a heel end  114  of the club head body  112 . The hosel tab  162  is configured to be a physical indicator of the current lie angle of the putter-type golf club head  100  and provide a handle or knob to adjust the lie angle. For example, a hand of the fitter (not shown) can engage the hosel tab  162  and manipulate the hosel tab  162  in a top rail-to-sole direction to alter the lie angle to a different position. The hosel tab  162  and the lie arm  121  are indirectly coupled to each other (through the hosel body  122 ), thus upon movement of the hosel tab  162 , the lie arm  121  rotates about the post, thereby altering the lie angle of the club head  100  and movement of the hosel tab  162 . 
     In some embodiments, the lie arm  121  and the hosel body  122  are affixed to each other through mechanical coupling means (i.e. one or more fasteners). The fastener(s) not only provides a detachably engaged connection means with the hosel body  122 , but also coupling the lie arm  121  to the hosel body  122  through fasteners provides beneficial manufacturing advantages as outlined above. These advantages include, but are not limited to, reducing manufacturing material waste, as the hosel body  122  and lie arm  121  can be manufactured as separate components (i.e. separate CNC milling paths). For further iteration, the lie arm  121  is a separate part, element, or component from the hosel body  122 . 
     Referencing  FIGS.  11 ,  12 ,  14  and  15   , the first end  123  of the lie arm  121  is mechanically coupled to the hosel body  122 . This type of mechanically coupling means can be in the form of bolts, fasteners, etc. For example, in this embodiment, a plurality of lie arm apertures  139  are formed proximal to the lie arm first end  123 . In many embodiments, a plurality of lie arm apertures  139  can be referred to as one or more lie arm apertures, two or more lie arm apertures, three or more lie arm apertures, four or more lie arm apertures, five or more lie arm apertures, six or more lie arm apertures, or seven or more lie arm apertures. The plurality of lie arm apertures  139  are arranged to align with a plurality of hosel body apertures  140 . The lie arm apertures  139  and the hosel body apertures  140  are aligned and configured to receive one or more mechanical fastener(s) (i.e. bolts, screws, pins, or other mechanical fasteners) to couple and align the lie arm  121  to the hosel body  122  or vice versa. 
     Similarly, the hosel body  122  forms a plurality of hosel body apertures  140  configured to align with the plurality of lie arm apertures  139  formed at the lie arm&#39;s first end  123 . The plurality of hosel body apertures  140  and the plurality of lie arm apertures  139  extends either entirely through their respective structure or partially therethrough. The plurality of hosel body apertures  140  and the plurality of lie arm apertures  139  are configured to be aligned with one another, such that a fastener, a bolt, a screw, a pin or combinations thereof are configured to be received within each corresponding aligned aperture of the hosel body  122  and lie arm  121 . 
     For specific illustration,  FIG.  23    illustrates the hosel body  122  forming at least three hosel body apertures  140  along an L-shaped protruding portion  141 . Similarly, the lie arm  121  and more particularly the lie arm first end  123  forms two corresponding apertures  139  that&#39;s similarly sized to at least two hosel body apertures  140  of the three hosel body apertures  140 . The third hosel body aperture has a larger diameter than the two similarly sized hosel body apertures. Each hosel body aperture  140  formed on the L-shaped protruding portion  141  has a corresponding aperture  139  formed at the lie arm first end  123  (see  FIG.  11   ). The two similarly sized apertures  139 , 140  (can be referred to as “lie arm alignment aperture(s)” and “hosel body alignment aperture(s)) of the hosel body  122  and lie arm  121  are configured to receive pins (can also be referred to as “alignment pins”)  142 . These pins  142  (can be press fit) and help coordinate the alignment of the hosel body  122  and the lie arm  121  to one another. The lie arm aperture formed at the lie arm first end and the corresponding hosel body aperture that is larger in diameter than the other two apertures of the lie arm  121  and hosel body  122  are configured to receive a fastener (i.e. a screw, a bolt, etc.). The fastener applies an axial force that adjoins and/or clamps the lie arm  121  and the hosel body  122  together. 
     The plurality of alignment apertures  139 , 140  formed by the lie arm  121  and the hosel body  122  can or can not be threaded. The alignment aperture(s)  140  of the hosel body  122  and the corresponding alignment aperture(s)  139  of the lie arm comprises a diameter. The diameter of the alignment apertures  139 ,  140  can range between approximately 0.01 inch to approximately 1.0 inch. In many embodiments, the diameter of the alignment aperture  139 ,  140  can range between 0.01 inch-0.015 inch, 0.01 inch-0.02 inch, 0.02 inch-0.025 inch, 0.025 inch-0.030 inch, 0.030 inch-0.035 inch, 0.035 inch-0.040 inch, 0.040 inch-0.045 inch, 0.045 inch-0.050 inch, 0.050 inch-0.055 inch, 0.055 inch-0.060 inch, 0.060 inch-0.065 inch, 0.065 inch-0.070 inch, 0.070 inch-0.075 inch, 0.075 inch-0.080 inch, 0.080 inch-0.085 inch, 0.085 inch-0.090 inch, 0.090 inch-0.095 inch, 0.095 inch-0.100 inch. In many embodiments, the plurality of alignment apertures  139 ,  140  of the hosel body  122  and the lie arm  121  can be approximately 0.06 inches. 
     In some embodiments, the plurality of apertures  139 , 140  of the hosel body  122  and lie arm  121  that is configured to receive one or more pin(s)  142  can be referred to as a pair of alignment apertures. A pair of alignment apertures can be defined as an aperture formed on both the hosel body  122  and lie arm  121  that are configured to be aligned, affiliated, and/or concentric with each one another. In many embodiments, the hosel body  122  and lie arm  121  can combine to form one alignment pair apertures, two alignment pair apertures, three alignment pair apertures, four alignment pair apertures, five alignment pair apertures, six alignment pair apertures, seven alignment apertures, or eight alignment pair apertures. 
     As shown in  FIGS.  14  and  15   , the illustrated embodiment forms two pairs of alignment apertures such that each pair of alignment aperture is configured to receive an alignment pin  142 . The alignment pin  142  can be pressed fit into one or more pairs of alignment apertures. This allows the hosel body  122  and the lie arm  121  to be quickly aligned with each other during the assembly process. One or more pair(s) of alignment apertures can be spaced from another pair of alignment apertures. A portion of the space formed between the pair of alignment apertures can further form a coupling aperture pair  143 . 
     A coupling aperture pair  143  is defined herein as being the receiving aperture for a clamping component (i.e. a screw, a fastener, etc.) formed on both the lie arm  121  and hosel body  122 . The coupling aperture pair  143  of the lie arm  121  and the hosel body  122  can be defined by a diameter. The diameter of the coupling aperture  143  formed on the lie arm  121  can or can not be equal to the diameter of the coupling aperture  143  formed on the hosel body  122 . 
     The diameter of the coupling aperture  143  can range between 0.02 inch to approximately 0.5 inch. The diameter of the coupling aperture  143  can be between 0.02 inch to 0.04 inch, 0.04 inch-0.06 inch, 0.06 inch-0.08 inch, 0.08 inch-0.10 inch, 0.10 inch-0.12 inch, 0.12 inch-0.14 inch, 0.14 inch-0.16 inch, 0.16 inch-0.18 inch, 0.18 inch-0.20 inch, 0.20 inch-0.22 inch, 0.22 inch-0.24 inch, 0.24 inch-0.26 inch, 0.26 inch-0.28 inch, 0.28 inch-0.30 inch, 0.30 inch-0.32 inch, 0.32 inch-0.34 inch, 0.34 inch-0.36 inch, 0.36 inch-0.38 inch, 0.38 inch-0.40 inch, 0.40 inch-0.42 inch, 0.42 inch-0.44 inch, 0.44 inch-0.46 inch, 0.46 inch-0.48 inch, or 0.48 inch-0.50 inch. 
     With reference to  FIGS.  15  and  23   , the coupling aperture  143  of the hosel body  122  and the coupling aperture  143  of the lie arm  121  are of different diameters, but form a coupling aperture pair  143 . In this exemplary embodiment, the diameter of the hosel body coupling aperture  143  is approximately 0.089 inches and the diameter of the lie arm coupling aperture  143  is approximately 0.203 inches. The lie arm coupling aperture  143  diameter is larger than the hosel body coupling aperture  143  simply due to the geometrical characteristics of the fastener. 
     The fastener geometry comprises a head portion, a shank portion, and a threaded portion. The head portion is larger than both the diameter of the shank portion, and the threaded portion. The threaded portion is configured to be received or threaded into the coupling aperture  143  of the hosel body  122  and the head portion is configured to abut the coupling aperture  143  of the lie arm  121 . As the fastener becomes threaded into both the hosel body  122  and the lie arm  121 , an axial force is exerted that clamps the respective components together. The head portion of the fastener geometry abuts the coupling aperture  143  of the lie arm  121 , as the coupling aperture  143  of the lie arm  121  can be a countersunk or counterbore hole. 
     The hosel body  122  can further include an integrally connected ledge or flange (as illustrated by the L-shaped protruding portion  141 ). The ledge or flange can extend or protrude from any portion of the hosel body  122 . In some embodiments, the ledge or flange extends proximal from a bottom portion of the hosel body  122  in a heel-to-toe direction. The bottom portion of the hosel body  122  is proximal to the sole  116 . The top portion of the hosel body  122  is proximal to the top rail  115  of the putter type golf club head  100 . The ledge or flange can comprise a curvilinear geometry, a parabolic geometry, a curved geometry, a rounded geometry, a L-shaped geometry, or geometric combinations thereof. 
     Adjustable Loft Angle Mechanism 
     Hose/Arm and Loft Arm Configuration and Arrangement 
     As discussed above, the putter-type club head can also comprise an adjustable loft mechanism  102 . As generally described above, the adjustable loft angle mechanism comprises a hosel body  122 , a hosel arm  127 , and a loft arm  128 . These components incorporate to incrementally adjust the loft angle of a putter-type golf club head in a front striking surface-to-rear surface direction (or rotating about the x-axis). Specifically, in many embodiments, the loft angle of the putter-type golf club head  100  is incrementally adjusted by the hosel arm  127  and loft arm  128  being rotatably or pivotably engaged to one another at the hosel arm second end  131  and the loft arm second end  130 , respectively. The paragraphs below will describe in more detail the structure and arrangement of the components of the adjustable loft angle mechanism  102 . 
     In some embodiments, the hosel arm  127  can integrally protrude from the hosel body  122  in a top rail  115 -to-sole  116  direction. The height of the hosel arm  127  is less than the height of the loft arm  128 . The hosel arm  127  is configured to reside beneath a portion of the hosel arm  127  and hidden or unnoticeable from a top view of the club head  100 . Having the height of the hosel arm  127  less than the height of the loft arm  128  and hidden from a top view of the club head (at an address position) structurally resembles the hosel of a blade style putter, while providing a hosel with an adjustable fitting mechanism(s). 
     In this embodiment, the hosel arm  127  forms at least four hosel arm apertures  144 - 146  (a hosel arm lower mounting aperture  144 , a hosel arm middle mounting aperture  145 , and at least two hosel arm topmost mounting apertures  146 ). The hosel arm lower mounting aperture  144  is vertically spaced closer to the hosel body  122  than the hosel arm middle mounting aperture  145  and the hosel arm topmost mounting aperture  146 . The hosel arm topmost mounting aperture  146  is spaced further vertically away from the hosel body  122  than the hosel arm middle mounting aperture  145 . The hosel arm middle mounting aperture  145  is positioned between the hosel arm lower mounting aperture  144  and the two or more hosel arm topmost mounting apertures  146 . The structure and function of each aperture of the hosel arm will be discussed in more detail below. 
     The loft arm  128  and the hosel arm  127  are adjacent to one another. In many embodiments, the loft arm  128  forms an aperture at the second end  130  of the loft arm  128  (i.e. loft arm lower aperture  147 ). The loft arm lower aperture  147  is configured to be aligned with the hosel arm lower mounting aperture  144  and adapted to receive a fastener. The fastener clamps the loft arm  128  and the hosel arm  127  together to further define a loft angle pivot point. Once the fastener is engaged to both the loft arm lower aperture  147  and the hosel arm lower mounting aperture  144 , the fastener is not required to be removed to alter the loft angle of the golf club head. In some embodiments, the fastener is in the form of a shoulder bolt  148 . Upon the shoulder bolt engaging the hosel arm lower mounting aperture  144  and the loft arm lower aperture  147 , the arrangement of the shoulder bolt  148 , hosel arm  127 , and loft arm  128  defines a rotational surface for the loft arm  128  to rotate around in a front striking surface-to-rear direction (i.e. rotating about the x-axis). This type of rotation enables the loft angle of the club head to be altered. 
     As the shoulder bolt  148  engages both the loft arm lower aperture  147  and the hosel arm lower mounting aperture  144 , an outer surface of the loft arm lower aperture  147  rests upon the unthreaded shoulder bolt portion  149 . The shoulder bolt  148 , as illustrated in  FIG.  25   , has an unthreaded shoulder bolt portion  149  and a threaded shoulder bolt portion  150 . The threaded shoulder bolt portion  150  threads into the hosel arm lower mounting aperture  144 . The contact surface between the outer surface of the loft arm lower aperture  147  and the shoulder bolt  148  provides a pivot surface for the loft arm  127  to rotate about the x-axis (relative to the hosel arm) and incrementally alter the loft angle of the putter-type club head  100 . 
     As described above, the loft arm lower aperture  147  can be in the form of a counterbore or countersunk hole. The counterbore or countersunk hole/aperture further provides an abutment surface for a bearing  151  to sit against. The bearing  151  enhances the ability to provide rotational or pivoting movement with respect to the hosel arm  127  and the loft arm  128 , while simultaneously reducing the clamping stress induced by the shoulder bolt  148  and frictional forces caused by the loft arm  128  and hosel arm  127  contacting one another. The bearing  151  further reduces the contact/frictional forces induced by the loft arm  128  and a head of the shoulder bolt  148 . Thereby, the shoulder bolt  148  clamps the hosel arm  127  and loft arm  128  together at a higher degree relative to a non-bearing assembly. Preferably, at each pivot surface or point of rotation, a bearing  151  is present for the above described advantages, although not required. 
     In addition to the loft arm second end  130  forming a loft arm lower aperture  147 , the loft arm  128  further forms a loft arm middle aperture  153  vertically spaced from the loft arm lower aperture  147  in a top rail-to-sole direction. The loft arm middle aperture  153  can extend either entirely through the loft arm  128  or a portion thereof. The loft arm middle aperture  153  can be substantially cylindrical and defined by a diameter. The diameter of the loft arm middle aperture  153  can be approximately 0.107 inches. However, in other embodiments, the diameter of the loft arm middle aperture  153  can be between 0.02 and 0.75 inch. 
     In many embodiments, the loft arm middle aperture  153  is threaded. When the hosel arm middle mounting aperture  145  and the loft arm middle aperture  153  are aligned with each other, a fastener is configured to be inserted through the hosel arm middle mounting aperture  145  and threadedly engage the threads of the loft arm middle aperture  153 . This type of arrangement further reinforces and clamps the hosel arm  127  and the loft arm  128  together. Unlike the other fastener that clamps the loft arm  128  and hosel arm  127  together at the loft arm lower aperture  147  and the hosel arm lower mounting aperture  144 , the fastener needs to be unthreaded from the loft arm middle aperture  153  or loosened to alter the loft angle of the golf club head  100 . The hosel arm middle mounting aperture  145  is larger than the loft arm middle aperture  153 . This allows the hosel arm middle mounting aperture  153  to account for various loft angle adjustment positions, while still permitting clamping of the hosel arm  127  and loft arm together  128  (See  FIG.  29    and  FIG.  30   ). 
     In many embodiments, the hosel arm middle mounting aperture  145  can be configured to be larger than the major diameter of the fastener. Further, the hosel arm middle mounting aperture  145  can be sized to account for the most extreme loft angle adjustment positions (See  FIG.  29    and  FIG.  30   ). 
     The loft arm  128  further forms a plurality of loft arm top apertures  154  positioned closer to the first end  129  of the loft arm than the second end  130  of the loft arm  128 . The plurality of loft arm top apertures  154  can be in the form of any shape and preferably does not need to extend entirely through the body of the loft arm  128 . The plurality of loft arm top apertures  154  can be any shape, including, but not limited to, conical, pill shaped, cylindrical, pyramidal, funnel-shaped, pointed, and/or tapered geometries. It is preferred that the loft arm top apertures  154  are conical or pill shaped. This type of geometry enables the loft arm top apertures  154  to quickly engage and disengage a plunger  155  (see  FIG.  28   ). The loft arm top apertures  154  further aid in precisely altering the loft angle of the club head, which will be discussed in more detail below. Each of the loft arm top apertures  154  are spaced/positioned from one another, such that there is a space present between a pair of loft arm top apertures  154 . In this particular embodiment, the plurality of top arm apertures are spaced from one another in intervals of degrees. 
     Having the geometry of the loft arm top apertures  154  be pill-shaped or conical increases the surface area of the loft arm top apertures  154  (relative to a circular aperture). As more surface area is present, the tolerance stacking between the loft arm top apertures  154 , hosel arm topmost mounting apertures  146 , and plungers  155  are not required to be as tight or precise, which reduces the required machining tolerances, machining time, and cost. 
     Specifically, in reference to  FIG.  27   , the plurality of loft arm top apertures  154  are spaced from one another in intervals of two degrees. However, in other embodiments, the plurality of loft arm top apertures  154  can be spaced from one another by three degrees, four degrees, five degrees, six degrees, seven degrees, eight degrees, nine degrees, ten degrees, eleven degrees, twelve degrees, thirteen degrees, fourteen degrees, fifteen degrees, sixteen degrees, seventeen degrees, eighteen degrees, ninety degrees, or twenty degrees. The degree spacing distance is in reference to an imaginary circle with a center at the loft arm lower aperture  147  and extends through the center of each of the plurality of loft arm top apertures  154  (See  FIG.  27   ). 
     As illustrated in  FIG.  14   , the two or more hosel arm topmost mounting apertures  146  are formed proximal to the first end  156  of the hosel arm  127 . Having two or more apertures (hosel arm topmost mounting apertures  146 ) formed at the first end  156  of the hosel arm  127 , as well as, having each hosel arm topmost mounting aperture  146  configured to receive a plunger  155  aids in precisely adjusting the loft angle of the golf club head  100 . The two or more hosel arm topmost mounting apertures  146  are preferably threaded to receive one or more plungers  155  (i.e. a first plunger in a first hosel arm topmost mounting apertures and second plunger in a second hosel arm topmost mounting apertures) in each aperture. In alternative embodiments, one or more plungers  155  can be press fit into one or more of the hosel arm topmost mounting apertures  146 , instead of threadably engaged. 
     In many embodiments, the plungers  155  can be in the form of a ball plunger. The ball plunger comprises a hollow threaded body, a spring positioned inside the hollow threaded body, and a ball coupled to the spring. The ball plunger is configured to engage and disengage the plurality of loft arm top apertures  154 . This type of arrangement between the ball plunger  155 , the plurality of loft arm top apertures  154 , and the hosel arm topmost mounting apertures  146  provides feedback to the user when the loft angle has been adjusted and more precisely adjusts the loft angle to a certain predetermined position. 
     For example, in reference to  FIG.  14   , the body of the ball plunger is adapted to threadably engage each of the hosel arm topmost mounting apertures  146 . With continued reference to  FIG.  14   , the hosel arm  127  comprises two hosel arm topmost mounting apertures  146 . The two hosel arm topmost mounting apertures  146  are threaded and each hosel arm topmost mounting aperture  146  is configured to receive the threaded body of the ball plunger  155 . When the ball plunger  155  is threadably engaged to the hosel arm topmost mounting aperture  146 , the ball of the ball plunger  155  is configured to contact the loft arm  128 , and more specifically engage with one of the plurality of loft arm top apertures  154 . At any given time, the first ball plunger  155  is configured to engage one of the plurality of loft arm top apertures  154  and the second ball plunger  155  is configured to reside in the space between a pair of loft arm top apertures  154 . When a fitter or user (not shown) wants to alter the loft angle, the fitter needs to unfasten/unthread the fastener from the loft arm middle aperture  153  to reduce the clamping force between the hosel arm and loft arm. This type of arrangement between the ball plunger  155 , the plurality of loft arm top apertures  154 , and the hosel arm topmost mounting apertures  146  provides feedback to the user when the loft angle has been adjusted and more precisely adjusts the loft angle to a certain predetermined position. 
     Specifically, the hosel arm topmost mounting apertures  146  are spaced from one another in intervals of five degrees. However, in other embodiments, the plurality of hosel arm topmost mounting apertures  146  can be spaced from one another by one degree, two degrees, three degrees, four degrees, five degrees, six degrees, seven degrees, eight degrees, nine degrees, ten degrees, eleven degrees, twelve degrees, thirteen degrees, fourteen degrees, fifteen degrees, sixteen degrees, seventeen degrees, eighteen degrees, ninety degrees, or twenty degrees. The degree spacing distance is in reference to an imaginary circle with a center at the hosel arm lower mounting aperture  144  and extending through the center of each of the plurality of hosel arm topmost mounting apertures  146 . 
     Upon the loft arm  128  and hosel arm  127  being uncoupled from each other (unfastening the fastener from the hosel arm middle mounting aperture  145  and loft arm middle aperture  153 ), the ball plungers  155  can be configured to be repositionably engaged within one of the plurality of top apertures  154  of the loft arm  128 . For way of illustration,  FIG.  29    illustrates a golf club head  100  in a first loft configuration (i.e. the first ball plunger  155  engaged within one of the plurality of loft arm top apertures  154  and the second ball plunger  155  engaged within the space between two adjacent loft arm top apertures  154 .  FIG.  30    illustrates a golf club head  100  in a second loft configuration (relative to the first loft configuration). 
     When comparing  FIGS.  29  and  30   , it can be seen that to change the loft angle of the putter-type golf club head  100 , the hosel arm  127  and the loft arm  128  pivot with respect to one another at the hosel arm second end  131  and the loft arm second end  130 , respectively and upon rotation the ball plungers  155  are able to disengage and move from its current position to another position (i.e. space between two loft arm top apertures or engaged in another loft arm aperture  154 ). This type of engagement and disengagement of the ball plungers  155  within the loft arm top apertures  154  provides feedback to the user when the loft angle has been adjusted, more precisely adjusts the loft angle to a certain predetermined position, and provides a temporary “locked” position of the hosel arm  127  to the loft arm  128 . This temporary locked position ensures the fitter (or user) that the loft angle of the putter-type club head  100  will not be inadvertently altered when reclamping the hosel arm  127  to the loft arm  128 . 
     Adjustable Lie Angle Mechanism—Hosel Body/Plungers Interaction 
     As described above, the adjustable lie angle mechanism further comprises plungers/apertures. Similarly, to the description above, the hosel body  122  forms at least two apertures (i.e. second set of hosel body apertures  157 ) towards the heel end  114  of the putter-type golf club head  100 , on the other side of the L-shaped protruding portion  141 , or distal from the L-shaped protrusion  141  (see  FIG.  23   ). Each of the second set of hosel body apertures  157  are configured to receive a ball plunger  155 . One and only one ball plunger  155  (at any given time) is configured to be inserted into a plurality of catches  158  formed by the rear surface  118  of the club head body proximal to the heel end  114  of the golf club head  100  (as illustrated by  FIG.  31   ). The ball plungers  155  can be threadably engaged or press fit into the second set of hosel body apertures  157 . 
     The plurality of catches  158  are recesses formed in rear surface  118  of the club head body  112 . The one or more ball plungers  155  can be threadably engaged to the second set of hosel body apertures  157 . The plurality of catches  158  are similar in function and structure with respect to the arrangement of the ball plungers  155 , loft arm top aperture  154 , and hosel arm topmost mounting apertures  146  described above. The plurality of catches are generally spaced from each other in a top rail-to-sole direction. 
     Upon a strike face fastener  159  being uncoupled from the hosel body  122  (unthreading the strikeface fastener  159  from the hosel body  122 ), the ball plungers  155  can be configured to be repositionably engaged within one of the plurality of catches  158  of the rear surface  118  of the clubhead body  112 . For way of illustration,  FIG.  32    illustrates a golf club head  100  in a first lie configuration (i.e. first ball plunger  155  engaged within one of the plurality of catches  158  formed in the rear surface  118  of the club head body  112  and a second ball plunger  155  engaged within the space between two adjacent catches  158  formed in the clubhead body  112 .  FIG.  33    illustrates a golf club head in a second lie configuration (relative to the first lie configuration). When comparing  FIGS.  32  and  33   , it can be seen that to change the lie angle of the putter-type golf club head  100 , the lie arm  121  rotates about the post  120  and upon rotation, the first and second ball plungers  155  either (1) disengage and move away from its current position to another position (i.e. space between adjacent catches  158  or engage another catch  158  formed in the rear surface  118  of the clubhead body  112 ). The ball plungers  155  moving in and out of the catches  158  provide feedback to the fitter and more accurately adjusts the lie angle of the putter-type golf club head  100 . Further, having a ball plunger temporarily engaging one of the plurality of catches  158  creates a temporary locked position. This temporary locked position ensures the fitter (or user) that the lie angle of the putter-type club head  100  will not be inadvertently altered, when reclamping the strike face fastener  159  to the hosel body  122 . 
     The front striking surface  117  forms a front striking surface aperture  160 . The front striking surface aperture is proximal to the heel end  114  of the putter-type golf club head  100 . The front striking surface aperture  160  can be any geometry, including an oval. In many embodiments, the geometry of the front striking surface aperture  160  can be round, circular, cylindrical, rectangular, square, polygonal, curvilinear, or combinations thereof. The front striking surface aperture  160  can be in the form of a counterbore or countersunk hole. The front striking surface aperture  160  can extend entirely through the front striking surface  117  or a portion thereof. 
     The strike face aperture  160  is aligned with a third set of hosel body aperture(s)  161  formed on the rear surface  118  of the putter-type golf club head  100 . The third set of hosel body aperture(s)  161  can be threaded and proximal to the second set of hosel body apertures  157 . The strike face fastener  159  can be configured to be inserted through both the strike face aperture  160  and threadably engage the third set of hosel body aperture(s)  161 . This type of arrangement of the strike face aperture  160 , the third set of hosel body aperture(s)  161 , and the strike face fastener  159  mechanically couples or clamps the hosel body  122  to the rear surface  118  of the putter-type golf club head  100 . 
     Insertion of the Hosel to the Club Head Body 
     In some embodiments, the hosel tab  162  can not be present, rather, a fastener can be configured to engage a double recess aperture  163  and become coupled to the hosel body  122  by means of mechanical engagement (i.e. via threads). In other embodiments, if the hosel tab  162  extends from the hosel body  122 , then the hosel needs to be inserted into the second deeper recess  134  at a distance spaced from the heel end  114  of the putter-type golf club head  100  and then shift, slide, or translate the hosel body  122  towards the heel end  114  of the club head until the hosel tab sits flush with double recess aperture  163 . This creates the aforementioned puzzle-locking geometry. On the hand, if the hosel tab  162  is not present and rather the fastener engages both the double recess aperture  163  and the hosel body  122 , the hosel body  122  can be directly inserted at the extreme most heel side end of the second deeper recess  134 . 
     For further description, in embodiments where the hosel tab  162  is present, the hosel body  122  can be spaced from the extreme heel side boundary of the second deeper recess  134  by at least the length of the hosel tab (measured in a heel-to-toe direction)  162 . As directly inserting the hosel body  122  to the heel side boundary of the second deeper recess  134  would have the hosel tab  162  contacting a portion of the club head body  112 , thereby restricting insertion of the hosel body  122  into the second deeper recess  134 . 
     Loft &amp; Lie Angle Visual Indicators 
     To help a fitter (not shown) more quickly and knowingly adjust the lie angle of the putter type golf club head  100 , the double recess aperture  163  can be formed in the heel end  114  of the putter-type golf club head  100 . The double recess aperture  163  can have a first portion and a second portion. The first portion of the double recess aperture  163  can be defined as having a portion of the aperture extending entirely through a heel end  114  of the club head body  112 . Thereby, forming a void. The second portion of the double recess aperture  163  can define a cavity (i.e. extending through a portion of the heel end  114  of the putter-type golf club head  100  and not entirely through the heel end  114 ), as shown in the illustrative embodiment of  FIG.  35   . 
     In many embodiments, the hosel tab  162  can have a groove or slot  164  formed at the end of the hosel tab  162 . The groove or slot  164  can extend generally in a front striking surface-to rear direction. Additionally, in many embodiments, the cavity or second portion of the double recess aperture  163  extending through a portion of the heel end  114  of the putter-type golf club head  100  can include a plurality of lie angle alignment markers  165 . In combination with the groove  164  disposed on the hosel tab  162  and the plurality of lie angle alignment markers  165  formed into or extending from a surface of the cavity, a visual aid is formed. The visual aid enables the fitter to quickly gage the current lie angle the putter-type golf club head and easily adjust the putter-type golf club head  100  to another desired lie angle configuration. 
     In some embodiment, a lie badge (not shown) can be attached to the cavity or the second portion of the double recess aperture not extending entirely through the heel end of the putter-type golf club head. The lie badge can form a plurality of lie angle alignment markers  165  that are either formed into or protrude from a surface of the lie badge. As will be discussed below, the plurality of lie angle alignment markers  165  represent different lie angle configurations. Each of the plurality of lie angle markers  165  can be different colors from one another for easily identifying the current lie angle of the putter-type golf club head. The width of the lie badge can be between approximately 0.07 inch to approximately 1.4 inches. In some embodiments, the lie badge can be approximately 0.63 inch. 
     The plurality of lie angle alignment markers  165  are configured to represent different lie angles. For example, one lie angle adjustment marker can define one lie angle configuration, another lie angle adjustment marker can define another lie angle configuration, etc. In many embodiments, the plurality of lie angle alignment markers  165  can be in one or more rows, one or more columns, one or more groups, or one or more sets. In other embodiments, there can be two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, seventeen or more, eighteen or more, nineteen or more, or twenty or more lie angle alignment markers  165 . 
     The spacing or distance between lie angle alignment markers  165  can differ from another group of alignment markers or can be equally spaced between lie angle alignment markers  165 . The spacing distance between lie angle alignment markers can have a non-constant spacing distance between alignment markers to create a wider span or range of lie angle positions. 
     With specific reference to  FIG.  20   , a plurality of loft angle alignment markers  166  can be formed proximal to the first end  129  of the loft arm  128 . The plurality of loft angle alignment markers  166  formed at the first end  129  of the loft arm  128  can be in the form of indentations or protrusions. In many embodiments, the plurality of loft angle alignment markers  166  can be in one or more rows, one or more columns, one or more groups, or one or more sets. In other embodiments, there can be two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, seventeen or more, eighteen or more, nineteen or more, or twenty or more loft angle alignment markers  166 . 
     The spacing or distance between loft angle alignment markers  166  can differ from another group of loft angle alignment markers  166  or be equally spaced between loft angle alignment markers  166 . The spacing distance can have a non-constant spacing distance between loft angle alignment markers  166  to create a wider span or range of loft angle positions. 
     In another embodiment, a loft badge (not shown) can be attached to the first end  129  of the loft arm  128 . The loft badge can form a plurality of loft angle alignment markers  166  that are either formed into or protrude from a surface of the loft badge. As will be discussed below, the plurality of loft angle alignment makers represents different loft angle configurations. Each of the plurality of loft angle alignment markers  166  can be different colors from one another for easily identifying the current loft angle of the putter-type golf club head  100 . The width of the loft badge can range between approximately 0.07 inch to approximately 1.4 inches. In some embodiments, the loft badge can be approximately 0.63 inch. 
     In many embodiments, the first end  156  of the hosel arm  127  can have a groove, slot, or protrusion formed thereon. The groove, slot, or protrusion formed proximal to the first end  156  of the hosel arm  127  can be any shape, including a rectangle. This groove, slot, or protrusion signifies the current loft angle build of the putter type golf club head  100  upon coupling to the loft arm  128 . Further, in many embodiments, the groove, slot or protrusion can extend generally in a top rail-to-sole direction. In combination with the groove, slot, or protrusion disposed at the first end  156  of the hosel arm  127  and the plurality of loft angle alignment markers  166  formed into or extending from the first end  129  of the loft arm  128 , a loft angle visual aid can be formed. The visual aid enables the fitter to quickly gage the current loft angle of the putter-type golf club head  100  and easily adjust the putter-type golf club head to another desired loft angle. As discussed above, the cub head can further comprise an adjustable head mass mechanism. 
     Adjustable Head Mass Mechanism 
     The adjustable fitting mechanism permits the ability to incrementally adjust the head mass of the club head. In other embodiments, the golf club head can not have an adjustable head mass fitting mechanism  103 . The back surface  119  of the putter-type golf club head  100  defines a rear ballast  168  detachably engaged to the club head body  112  via fasteners/apertures (see  FIG.  16   ). In alternative embodiments, the adjustable head mass mechanism  103  can engage and disengage the club head body  112  through magnets, rather than fasteners. 
     In the illustrated embodiment of  FIGS.  12 ,  16 , and  26   , the back surface  119  of the putter type golf club head  100  forms at least two back surface apertures  169 . The first back-surface aperture  169  is positioned proximal to the heel end  114  and the second back surface aperture  169  is positioned proximal to the toe end  113 . Each back-surface aperture  169  is threaded. 
     Further, in this exemplary embodiment, the rear ballasts  168  are detachably engaged to the club head body  112 . The rear ballasts  168  form one or more through apertures  170  and preferably forms the same quantity of back surface apertures  169  that is formed on the back surface  119  of the club head body  112 . The rear ballasts through apertures  170  are configured to align with the back-surface apertures  169  and partially viewable from a bottom (sole) view. Each rear ballast through aperture  170  and back surface aperture  169  that is aligned are configured to receive a rear ballast fastener  171 . The rear ballasts fastener  171  can be threaded to clamp or couple the rear ballast  168  to the club head body  112 . The rear ballast  168  can be interchangeable with another rear ballast  168  of a different mass upon unfastening of the rear ballast fastener  171 . The rear ballast fastener  171  needs only be unfastened by a quarter turn to uncouple the rear ballasts  168 . In other embodiments, the rear ballasts  168  entirely forms the through apertures  170  (not visible from a bottom (sole) or top (top rail) view. This type of aperture  170  arrangement requires the fastener to be completely unthreaded from the aperture, rather than a quarter turn. 
     II. Embodiment II—Integrally Coupling Lie Arm and Hosel Body 
     Another embodiment according to this invention is described below. This embodiment is substantially similar to the above described embodiment. Only the differences between the first embodiment and the second embodiment will be discussed below. Integrally coupling the lie arm to the hosel body includes many beneficial advantages, including, but not limited to, reducing the machining time, assembly time, and skill needed to couple the lie arm and the hosel body together. 
       FIGS.  36 - 38    illustrates another embodiment according to this invention.  FIG.  36    illustrates a front view of an embodiment according to some aspects of this invention.  FIG.  37    illustrates a rear view of an embodiment according to some aspects of this invention.  FIG.  38    illustrates a heel-side view of an embodiment according to some aspects of this invention. 
     The putter-type golf club head  200  comprises a club head body  212 . The club head body  212  comprises a front striking surface  217 , a rear surface  218  spaced from the front striking surface  217 , a back surface  219  opposite the front striking surface  217 , a sole  216  extending between the front striking surface  217  and the back surface  219 , a top rail  215  opposite the sole  216 , and the front striking surface  217  disposed between the heel end  214  and the toe end  213 . 
       FIG.  38    illustrates a heel side view of the putter-type golf club head  200 . A difference between Embodiment I (Mechanically Attaching Lie Arm to Hosel Body) and Embodiment II (Integrally Coupling Lie Arm to Hosel Body) is the connection means between the lie arm  121 ,  221  and the hosel body  122 ,  222 . In Embodiment I, the lie arm  121  is mechanically attached to the hosel body  122 , meaning the lie arm  121  and the hosel body  122  are separate pieces. In Embodiment II, the lie arm  221  is integrally coupled to the hosel body  222 , meaning, the hosel body  222  and lie arm  221  are formed from the same piece of material. By having the lie arm  221  integrally connected to the hosel body  222 , this reduces the assembly time and skill to connect the two elements together. 
     As the lie arm  221  is integrally connected to the hosel body  222 , the heel-to-toe length of the adjustable lie angle mechanism  101  is increased and fixed. To account for this increase in length, a portion of the heel side of the body forms an opening (not closed) or void  273 . The opening or void  273  at the heel side of the body provides extra space to accommodate insertion of the integrally connected hosel body  222  and lie arm  221  into the club head body  212 . This opening or void  273  can be seen both in a heel view and rear view of the putter type golf club head. 
     With continued reference to  FIG.  38   , the geometry of the loft arm top apertures  254  are pill shaped. Similarly, to Embodiment I, each hosel arm topmost mounting apertures  246  are configured to receive a plunger  255 . The plungers  255  are configured to engage the pill shaped loft arm top apertures  254 . Having the geometry of the loft arm top apertures  254  be pill shaped increases the surface area of the loft arm top apertures  254  (relative to a circular geometry). As more surface area is present, the tolerance stacking between the loft arm top apertures  254 , hosel arm topmost mounting apertures  246 , and plungers  255  are not required to be as tight or precise, which reduces the required machining tolerances, machining time, and cost. 
     Additionally, this embodiment illustrates a lie badge  274  attached to the cavity or the second portion of the double recess aperture not extending entirely through the heel end of the putter-type golf club head  200 . The lie badge  274  can form a plurality of lie angle alignment markers  265  that are either formed into or protrude from a surface of the lie badge. The plurality of lie angle alignment markers  265  represent different lie angle configurations. Each of the plurality of lie angle markers  265  can be different colors from one another for easily identifying the current lie angle of the putter-type golf club head  200 . The width of the lie badge can be between approximately 0.07 inch to approximately 1.4 inches. In some embodiments, the lie badge can be approximately 0.63 inch. 
     Various features and advantages of the disclosures are set forth in the following clauses. 
     Clause 1. A putter-type golf club head comprising: a club head body comprising a toe end; a heel end; a top rail; a sole; a post; a front striking surface; and a rear surface spaced from the front striking surface; wherein the rear surface, the sole, and the top rail defines a recess; a hosel comprising a hosel arm and a loft arm; wherein:the hosel arm comprises a hosel arm first end, a hosel arm second end, a hosel body, and a hosel tab; the loft arm comprises a loft arm first end and a loft arm second end; a lie arm comprising a lie arm first end, a lie arm second end, and a receiving geometry; wherein a portion of the receiving geometry defines an indentation that is complementary to the post geometry; wherein:the loft arm is configured to couple to a golf shaft; the post extends from the rear surface of the club head body; the hosel body is integrally connected to the hosel arm second end; the lie arm first end is attached to the hosel body; the hosel arm and the loft arm are pivotably engaged to one another at the hosel arm second end and the loft arm second end, respectively and configured to incrementally change a loft angle of the putter-type golf club head; the receiving geometry of the lever arm is adapted to engage the post and configured to incrementally adjust a lie angle of the putter-type golf club head; and the hosel tab is attached to the hosel body and partially exposed at a heel end of the club head body. 
     Clause 2. The putter-type golf club head of claim  1 , wherein the loft angle of the putter type golf club head changes in 1-degree increments. 
     Clause 3. The putter-type golf club head of claim  1 , wherein the lie angle of the putter type golf club head changes in 1-degree increments. 
     Clause 4. The putter-type golf club head of claim  1 , wherein a rear portion of the club head body further includes a rear ballast. 
     Clause 5. The putter-type golf club head of claim  4 , wherein the rear ballast is arranged to be detachably engaged to the rear portion of the club head body and configured to incrementally adjust a head mass of the putter-type golf club head. 
     Clause 6. The putter-type golf club head of claim  1 , wherein the rear surface further forms a plurality of conical recesses, and wherein the hosel body forms at least two threaded receiving ports. 
     Clause 7. The putter-type golf club head of claim  6 , wherein the putter-type golf club head further comprises at least two spring plungers configured to be received within the at least two threaded receiving ports of the hosel body. 
     Clause 8. The putter-type golf club head of claim  7 , wherein at least one spring plunger is always configured to be received within one of the plurality of conical recesses of the rear surface and the other one of the at least one spring plunger is always configured to be in a space between the plurality of conical recesses. 
     Clause 9. The putter-type golf club head of claim  8 , wherein the plurality of conical recesses of the rear surface are spaced in either two- or three-degree increments. 
     Clause 10. The putter-type golf club head of claim  9 , wherein the at least two threaded receiving ports of the hosel body are spaced approximately 5 degrees from one another. 
     Clause 11. The putter-type golf club head of claim  1 , wherein the putter-type golf club head includes a plurality of markings to visually assist a user during a lie angle adjustment process. 
     Clause 12. The putter-type golf club head of claim  1 , wherein the putter-type golf club head includes a plurality of markings to visually assist a user during a loft angle adjustment process. 
     Clause 13. The putter-type golf club head of claim  1 , wherein the loft arm first end forms a plurality of conical recesses. 
     Clause 14. The putter-type golf club head of claim  1 , wherein the hosel arm first end forms a plurality of threaded apertures. 
     Clause 15. The putter-type golf club head of claim  14 , wherein at least two spring plungers are configured to be received within the at least two threaded receiving apertures of the hosel arm first end. 
     Clause 16. The putter-type golf club head of claim  15 , wherein at least one spring plunger is always configured to be received within one of the plurality of conical recesses of the loft arm and the other one of the at least one spring plunger is always configured to be in a space between the plurality of conical recesses of the loft arm. 
     Clause 17. The putter-type golf club head of claim  16 , wherein adjustment of the loft angle repositionably adjusts which plurality of conical recesses the at least one spring plunger is received within. 
     Clause 18. The putter-type golf club head of claim  8 , wherein adjustment of the lie angle repositionably adjusts which plurality of conical recesses the at least one spring plunger is received within. 
     Clause 19. The putter-type golf club head of claim  1 , wherein the putter-type club head is structurally configured to resemble a blade style putter. 
     Clause 20. The putter-type golf club head of claim  1 , wherein the loft angle of the putter is less than 7 degrees.