This technique destabilizes the low-temperature hexagonal close packed titanium and converts it to a body centered cubic form. In this form the titanium is easier to work with. After manufacturing is complete the hydrogen is removed by heating the metal in a vacuum. The surface of the iron insert shown here reveals the diamonds embedded in the surface of the titanium matrix. This unit repeated over the entire club face creates the desired friction.
Putters are a familiar tool to most people.
The putter designed for short range hits on the ground. Near the hole a putt that is off a few degrees can miss the hole entirely. Low grade putters used by miniature golf courses are typically stainless steel or brass. The higher the moment of inertia of the club head the more resistant to twisting the head is. The most common way to reduce this twisting is to use a lightweight material in the center of the club and a heavier material in the toe and heel of the club.