Catalog No. E12024(5)Check Points

for Small Tool Instruments

CONTENTS
Micrometers

Introduction

Digimatic Outside Micrometers (Coolant Proof Micrometers)

1

Outside Micrometers

2

Disk Micrometers

3

Screw Thread Micrometers (Interchangeable type)4

HoltestMeasurement… the word can mean many things.

Digimatic Holtest (Three-point Bore Micrometers)

5

Holtest (Two-point/Three-point Bore Micrometers)

6

Bore Gages

7

Bore Gages (Small Holes)

8

For efficient and accurate measurement, the proper usage of measuring tools

ABSOLUTE Digimatic Bore Gage CG-D

9

and instruments is vital.

Calipers

In the case of length measurement there are many kinds of measuring
instrument and corresponding measuring methods.

ABSOLUTE Digimatic Calipers

10

Dial Calipers

11

use and regular maintenance is important.

Vernier Calipers

12

We have put together this booklet to help anyone get the best use from aLong ABSOLUTE Digimatic Calipers

13

ABSOLUTE Inside Calipers

14

Offset Centerline Calipers

15

Additionally, to ensure the long working life of those instruments, care in

Mitutoyo measuring instrument for many years, and sincerely hope it will

Height Gages

help you.

Digimatic Height Gages

16

Dial Height Gages

17

Depth Gages
Depth Micrometers (Interchangeable Rod Type)18

ABSOLUTE Digimatic and Vernier Depth Gages

19

ABSOLUTE Digimatic and Dial Depth Gages

20

Indicators
Digimatic Indicators

21

Dial Indicators

22

CONVENTIONS USED IN THIS BOOKLET

Dial Test Indicators (Lever-operated Dial Indicators)

23

Thickness Gages

24

The following symbols are used in this booklet to help the user obtainStandreliable measurement data through correct instrument operation.

Transfer and Comparator Stands

25

Gauge Blocks
Rectangular Gauge Blocks

26

Products Used for Maintenance of Measuring Instruments

27

correct
Mitutoyo Network

incorrect

Download service at Mitutoyo website

28

Micrometers

Micrometers

Digimatic Outside Micrometers (Coolant Proof Micrometers)

Outside Micrometers

Measuring faces

SpindleSpindle clamp

SleeveThimbleRatchet stop

Measuring faces

Anvil

SpindleSleeveThimbleRatchet stop

Sleeve graduations

Anvil

Frame

Spindle clamp

Output connector coverIndex line
Frame

Display unit

Heat shield

Thimble graduations

HOLD button

Before Use

ORIGIN button

Before Use

ZERO/ABS button

1. Check to see whether the thimble moves smoothly without any jamming or unevenness by rotating it all
Make contact slowly.
the way through its range.
2. Clamp a sheet of lint-free paper between the anvil and spindle, as if measuring its thickness, and slowly
draw it away to remove dust or dirt adhering to the measuring faces.
3. Slowly bring the measuring faces into contact and:• Rotate the ratchet 3 to 5 stops to apply a constant force to check the zero-point*.
If the ratchet stop is rotated at speed an excessive force could be introduced between the measuring Photo 1
faces which may have effect on measurement accuracy. (Photo 1)

Make contact slowly.

1. Check to see whether the thimble moves smoothly without any jamming or unevenness by rotating it all
the way through its range.
2. Replace button cell with an SR44 type if necessary (Order No.938882).
3. Clamp a sheet of lint-free paper between the anvil and spindle, as if measuring its thickness, and slowly
draw it away to remove dust or dirt adhering to the measuring faces.
4. Slowly bring the measuring faces into contact and:Photo 1
• Rotate the ratchet 3 to 5 stops to apply a constant force to check the zero-point*.
If constant pressure is applied roughly, the anvil side is pressed excessively, which may have effect on
measurement accuracy. (Photo 1)

Seal• If the zero point is off, reset by rotating the sleeve with the wrench, tapping the wrench gently with ahammer if necessary. (Fig. 1)
4. When resetting the zero point of a large micrometer, perform the adjustment in the actual measurement
orientation to minimize measurement uncertainty due to frame deflection.

Fig. 1

During Use* For 0-25mm range micrometers, datum-point will be 0.

5. When tightening the output connector cover and battery cap, be careful not to let the rubber seal get
trapped by the cap or cover. (Fig. 1)

During Use
1. Do not retract the spindle too far past the upper limit of the measuring range, as this can damage some
types of digital micrometer. (Fig. 2)
2. If any error occurs or the count is displayed abnormally, remove the battery and reinstall it.
3. Make sure that the spindle is always protected from impact. (Photo 2)

Wrench* For 0-25mm range micrometers, datum-point will be 0.

Fig. 1

1. Read the graduations seen directly from above to avoid parallax error. (Fig. 2)
2. The width of the graduation lines represent approximately 2μm to aid in reading to the nearest 1μm.
(Fig. 3)3. Make sure that the spindle is always protected from impact. (Photo 2)

25

Approx. +1μm

Fig. 2

SpindleSpindlePhoto 2
4. If using the instrument for an extended period of time, regularly check (and if necessary adjust) the zero
point to allow for thermal expansion.
If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it andcontact us for repair.

1

Photo 2

Index line

Approx. +2μm

Index line on sleeve Thimble graduation line Index line on sleeve Thimble graduation line

ThimbleSleeveFig. 2
Fig. 3

4. If using the instrument for an extended period of time, regularly check (and if necessary adjust) the zero
point to allow for thermal expansion.

25

After Use
1. Check for damage to the instrument and clean it.
Unlocked
If the instrument was used at a place where soluble cutting oil contamination was likely, be sure to
perform rust prevention treatment after cleaning.
2. Release the spindle clamp, separate the measuring faces by approximately 0.2 to 2 mm, and then store
the instrument. (Photo 3)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
4. When storing the instrument for a long time, apply a rust preventing light oil to the spindle as a rust
Photo 3prevention treatment and remove the battery.

Hammer

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it andcontact us for repair.

After Use25

1. Check for damage to the instrument and clean it.
If the instrument was used at a place where soluble cutting oil contamination was likely, be sure to
perform rust prevention treatment after cleaning.
2. Release the spindle clamp, separate the measuring faces by approximately 0.2 to 2 mm, and then store
the instrument. (Photo 3)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
4. When storing the instrument for a long time, apply a rust preventing light oil to the spindle as a rust
Photo 3prevention treatment.

2

UnlockedMicrometers

Micrometers

Disk Micrometers

Screw Thread Micrometers (Interchangeable contact point type)Measuring faces
Anvil

Clamp

ThimbleSpindleMeasuring faces
Ratchet stop

Frame

Clamp

ThimbleRatchet stop

SpindleClamp

ThimbleRatchet stop

Interchangeable anvil

Anvil

SpindleInterchangeable anvil

Clamp

ThimbleRatchet stop

Frame

Output connector cover

Frame

Display unit
Heat shield

Heat shield

ORIGIN button

Display unit
HOLD button
ZERO/ABS button

Heat Shield

SleeveSleeveOutput connector cover

Frame

SleeveSleeveHeat shield
PRESET button

ZERO/ABS button

Before Use

Before Use

1. Check to see whether the thimble moves smoothly without any jamming or unevenness by rotating it
all the way through its range.
2. Replace button cell with an SR44 type if necessary (Order No. 938882).
3. Clamp a sheet of lint-free paper between the anvil and spindle, as if measuring its thickness, andslowly draw it away to remove dust or dirt adhering to the measuring faces.
4. Slowly bring the measuring faces into contact and:• Rotate the ratchet 3 to 5 stops to apply a constant force to check the zero-point*.
Operate the ratchet stop smoothly to avoid excessive measuring force being applied, which otherwise
may adversely affect measurement accuracy.

1. Check to see whether the thimble moves smoothly without any jamming or
Table 1 Interchangeable contact points
For metric (unify) specification (pair)
unevenness by rotating it all the way through its range.
2. Replace button cell with an SR44 type if necessary (Order No.938882).
Order No. Code
Pitch range
Female side
Male side
3. Remove dust or dirt adhering to the measuring faces.
(1) 126-801 M1 (U1) 0.4〜0.5 (64〜48 TPI)
4. Do not combine different type of contact points as otherwise a significant(2) 126-802 M2 (U2) 0.6〜0.9 (44〜28 TPI)
measurement error may result.
〜〜
Always use the same type of interchangeable contact points as a pair. (Table 1) (3) 126-803 M3 (U3) 1 1.75 (24 14 TPI)(4) 126-804 M4 (U4) 2〜3 (13〜9 TPI)
5. Perform zero-point adjustment in the following way:(5) 126-805 M5 (U5) 3.5〜5 (8〜5 TPI)
• Rotate the thimble to align the index line with the thimble’s zero graduation.
• Rotate the box nut to slowly slide the adjustment bushing, and retain it with the (6) 126-806 M6 (U6) 5.5〜7 (4.5〜3.5 TPI)
clamp at the female side after bringing the male and female contact points
into light contact. (Photo 1)
Box nut Adjustment bushing
Operate the ratchet stop smoothly to avoid excessive measuring force being applied, which may otherwise
adversely affect measurement accuracy.
• Rotate the ratchet 3 to 5 stops to apply a constant force to check the zero-point*.
* For 0-25mm range micrometers, datum-point will be 0.
Bring contact points• If the zero point is off, rotate the sleeve to align the index line with the zero graduation on the sleeve.
Clamp on the female lightly together(For a digimatic type, press the PRESET button to perform the zero-point setting.)
contact point side
• For a micrometer with a range greater than 25mm (or 1"), always use the dedicated setting standard
Photo 1
supplied to set the reference point.
6. When tightening the output connector cover and battery cap for a digimatic type, be careful not to let therubber seal get trapped by the cap or cover.

* For 0-25mm range micrometers, the datum-point will be 0.

Measurement

Gauge block• If the zero point is off, rotate the sleeve to align the index line with the zero graduation on the sleeve.
• Alternatively, to maximize the accuracy of a measurement the micrometer can be set to gauge blocks
equal to the expected measurement value (at the reference point). This minimizes the influence of nonparallelism of the disks and takes advantage of the higher narrow-range accuracy specification. (Fig.1)
5. Parallelism can be checked by measuring a gauge block at four positions on the measuring faces and
2mm in from the edge as shown. (Fig.2)
6. When resetting the zero (or reference) point of a large micrometer, perform the adjustment in theactual measurement orientation to minimize measurement error due to frame flexure.
7. When tightening the output connector cover and battery cap on a digimatic type, be careful not to let
the rubber seal get trapped by the cap or cover.

Fig.1 Setting to a reference point
Gauge block

2mm

Fig.2 Measuring face

During Use
1. Only perform measurement within the measuring range of the micrometer. Digimatic micrometers can be damaged by retracting thespindle past the end of the range.
2. If any error occurs or the count is displayed abnormally in a digimatic type, remove the battery and reinstall it.
3. Make sure that the anvil and the spindle are always protected from impact.
4. If using the instrument for an extended period of time, regularly check (and if necessary adjust) the zero point (or reference point) to allow
for the effects of thermal expansion due to heat conduction from the user's hand.
If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

During Use
1. Only perform measurement within the measuring range of the micrometer. Digimatic micrometers can be damaged by retracting thespindle past the end of the range.
2. If any error occurs or the count is displayed abnormally on a digimatic type, remove the battery and reinstall it.
3. Make sure that the spindle and contact points are always protected from impact.
4. If using the instrument for an extended period of time, regularly check (and if necessary adjust) the zero point (or reference point) to allow
for the effects of thermal expansion due to heat conduction from the user's hand.
If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
1. Check for damage to the instrument and clean it.
If the instrument was used at a place where soluble cutting oil contamination was likely, be sure to
perform rust prevention treatment after cleaning.
2. Unlock the clamp (Photo 1) and store the instrument in a room free of excessive heat and moisture.
3. When storing the instrument for a long time, apply a rust preventing light oil to the spindle as a rustprevention treatment.

3

Unlocked

Photo 1After Use
1. Check for damage to the instrument and clean it.
If the instrument was used at a place where soluble cutting oil contamination was likely, be sure to perform rust prevention treatment after
cleaning.
2. Unlock the clamp and store the instrument in a room free of excessive heat and moisture.
3. When storing the instrument for a long time, apply a rust preventing light oil to the spindle as a rust prevention treatment and remove thebattery.

4

Holtest

HoltestDigimatic Holtest (Three-point Bore Micrometers)

Holtest (Two-point/Three-point Bore Micrometers)

40
5

Cap

9

1DIV. 0.005mm

Zero pointalignment

40

Workpiece

Fig. 1

4

1DIV. 0.005mm

45

Fig. 3After Use

測定物

基点合せ

5

0

45
5

0

45

5

0

45

0

5

45

45

4

1DIV. 0.005mm

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it andcontact us for repair.

45

1. To apply measuring force, bring the measuring faces into light contact with the workpiece and hold there. Then, rotate the ratchet 5 to 6
stops to apply a constant force. (Fig. 3)
2. Do not let the bottom of the measuring head touch anything when setting the reference point or measuring. If the bottom touches
anything when you are measuring a workpiece, the inclination of the surface that the bottom touches could
cause the contact points not to touch parallel to the workpiece, which can lead to measurement errors.
3. Make sure that the bearing surfaces of the anvils are always protected from impact.
4. If any error occurs or the count is displayed abnormally, remove the battery and reinstall it.
5. Only perform measurement within the measuring range.

1. To apply measuring force, bring the measuring faces into light contact withthe workpiece and hold there. Then, rotate the ratchet 5 to 6 stops to apply
a constant force. (Fig. 2)
2. Do not let the bottom of the measuring head touch anything when setting
the reference point or measuring. If the bottom touches anything when
you are measuring a workpiece, the inclination of the surface that thebottom touches could cause the contact points not to touch parallel to theworkpiece, which can lead to measurement errors.
3. Make sure that the bearing surfaces of the anvils are always protected from
impact.
4. Only perform measurement within the measuring range. (Fig. 3)

4

During Use

During Use

1DIV. 0.005mm

Fig. 1

Fig. 3Fig. 2

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use

測定物

基点合せ

1. Check for damage to the instrument and clean it. In particular, if any foreign matter is stuck to the bearing surface of the anvil, remove itwith a soft cloth such as gauze.
2. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
3. When storing the instrument for a long time, apply a rust preventing light oil to the anvils as a rust prevention treatment and remove thebattery.

1. Check for damage to the instrument and clean it. In particular, if any foreign matter is stuck to the bearing surface of the anvil, remove itwith a soft cloth such as gauze.
2. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
3. When storing the instrument for a long time, apply a rust preventing light oil to the anvils as a rust prevention treatment.

5

6

6

Fig. 235

Workpiece

Anvil bearing surface

4
3
2

Zero pointalignment

45

Anvil bearing surface

5

9

1DIV. 0.005mm

0

0

45
5

0

45

40

Seal
45

5

Anvil

Anvil

Cap

0

45

Measuring head4

Measuring head

Sleeve1DIV. 0.005mm

Display unit

Thimble9

PRESET button

Ratchet

1DIV. 0.005mm

Battery cap

1. Remove dust or dirt from the anvils.
2. Check to see whether the thimble moves smoothly without any jamming or
unevenness by rotating it all the way through its range. Also check that theanvils move in and out smoothly without sticking. 
Expose the anvils to the maximum measuring length to make sure there isno oil, chips, or other foreign matter stuck to the bearing surfaces. If there isany foreign matter, remove it with a soft cloth such as gauze.
3. Do not let the bottom of the measuring head touch anything when setting
the reference point or measuring. If the bottom touches anything when
you are measuring a workpiece, the inclination of the surface that thebottom touches could cause the contact points not to touch parallel to theworkpiece, which can lead to measurement errors.
4. If measuring at the tip of the anvil, make sure to align the zero point at thesame bore depth within the calibrated setting ring. (Fig. 1)
5. Note that if the measuring head is replaced, the accuracy specification is nolonger guaranteed.

40

SleeveOutput connector cover

1. Remove dust or dirt from the anvils.
2. Check to see whether the thimble moves smoothly without any jamming or
unevenness by rotating it all the way through its range. Also check that theanvils move in and out smoothly without sticking. 
Expose the anvils to the maximum measuring length to make sure there isno oil, chips, or other foreign matter stuck to the bearing surfaces. If there isany foreign matter, remove it with a soft cloth such as gauze.
3. Do not let the bottom of the measuring head touch anything when setting thereference point or measuring. If the bottom touches anything when you aremeasuring a workpiece, the inclination of the surface that the bottom touches
could cause the contact points not to touch parallel to the workpiece, which canlead to measurement errors.
4. If measuring using only the tip of the anvil, make sure to set the zero pointat the same bore depth within the calibrated setting ring. (Fig. 1)
5. Note that if the measuring head is replaced, the accuracy specification is nolonger guaranteed.
6. Replace button cell with an SR44 type if necessary (Order No.938882).
7. Enter the preset value (setting ring calibration value) if making absolutemeasurements.
8. When replacing the battery cap, make sure that the seal is properly seated.
(Fig. 2)

9

ThimbleBefore Use

1DIV. 0.005mm

RatchetBefore Use

Holtest

HoltestBore Gages

Bore Gages (Small Holes)
Protection cover(Option)(No.21DZA000)

Indicator
Clamp screw

Grip

Before Use

Before Use

1. Clean the contact point and anvil with a dry cloth.
2. Securely tighten the clamp screw to lock the gage in position. If
the gage still moves, clean the gage stem and clamp screw.
3. Set the zero point before starting measurement.
To perform initial setting with an outside micrometer, position
the micrometer in the vertical orientation with the spindle of the
micrometer and anvil of the gage as shown. (Fig. 1)
4. Mitutoyo provides a useful tool, the bore gage checker (Order
No.515-590), for zero-point adjustment. (Photo 1)

Protection cover(option)Indicator

Clamp screw

1. Clean the contact point (anvil) with a dry cloth.
2. Avoid large temperature changes such as may occur when transferring
the instrument from outside a room to inside, or vice versa. Otherwise
condensation may form and corrode the contact point (anvil) and/or
measuring pin, which may result in malfunction.
3. Securely tighten the clamp screw to lock the gage in position. If the gage
still moves, clean the gage stem and clamp screw.
4. Set the zero point before starting measurement. To set the zero point withan outside micrometer, position the micrometer in the vertical orientation
with the spindle of the micrometer as shown. (Fig. 1)

Grip

Contact point (anvil)

Guide
Bore gage checker

Contact point
Interchangeable
anvil clamping ring
Anvil

Driver pin

Fig. 1

Photo 1

Fig. 1

Enlarged view of
the contact point Measuring pin

During Use

Contact point

1. To insert the bore gage into the hole to be measured, or a setting ring, tilt the handle
so that the guides enter first followed by the anvil as shown. (Fig. 2)

During Use
1. When replacing the contact point (anvil), use the special spanner. (Fig. 2)

LL /2

Special spanner

L /2

Fig. 2Head

2. If the measuring face is scratched, etc. by bore gage measurement, it may becovered by special treatment provided by Mitutoyo, such as measuring force or guideContact point
supporting force adjustment or replacement of the contacting sphere. Please contactus.
3. For bore gages for blind holes (511-4XX, 511-4XX-20), do not apply force to the guidesection in the transverse direction. (Fig. 3)

Fig. 3Fig. 2
2. When replacing the contact point (anvil), hold the screw end so that thecontact point does not close. (Photo 1)

×

If the instrument dropped or struck hard, or for any other reason, do not use it andcontact us for repair.

After Use
1. Check for damage to the instrument and clean it.
2. If it is suspected that contamination is present inside the measuring or the sliding section,
Use a pair of circlip pliers to disassemble the head, then clean the inside with an alcohol
solution. When disassembling the head, be careful not to lose or damage the parts
inside, as the internal springs may cause them to pop out. (Fig. 4) After cleaning, drycompletely and apply a film of a rust preventing light oil to the contact point and thedriver pin.
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil
mist.

If the instrument is damaged due to being dropped or struck hard, or for any other reason,
do not use it and contact us for repair.

After Use

Cleaning parts

Fig. 47Photo 1

1. Check for damage to the instrument and clean it with dry cloth, etc.
2. If it is suspected that contamination is present inside the measuring section, remove the contact point (anvil)
using the special spanner, and clean the contact point (anvil) by dipping into an alcohol solution. After cleaning,
dry completely and apply a thin layer of a rust preventing light oil to the contact point (anvil). (Fig. 2)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.

8Holtest

Calipers

ABSOLUTE Digimatic Bore Gage CG-D

ABSOLUTE Digimatic Calipers
Inside measuring faces

Before Use
1. Clean the contact point and anvil with a dry cloth.
2. When setting up the measuring
Exchange anvil
range using spacers on
fixing screw
Anvil
the anvil, always use theSpacers
minimum number of spacers
possible. (Fig. 1)
3. Replace button cell with an
SR44 type if necessary (Order
Fig. 1
No.938882).
4. Make sure that the serial numbers of the display unit and themeasuring unit are the same. If they are different then theaccuracy specification cannot be guaranteed.
5. Make sure to engage the locating pin with the corresponding
groove when connecting an extension rod (optional) (Figs. 2
and Figs. 3).
6. Make sure to perform the initial setting before starting
measurement. To do this with an outside micrometer, keep the
micrometer in the vertical orientation and position the anvil on
the spindle as shown. (Fig. 4)
7. Mitutoyo provides a useful tool, the bore gage checker (Order
No.515-590) for initial setting. (Photo 1)

Display unit

PRESET button
Clamp knob

Grip

Guide

Inside measuring jaws

Anvil

Contact point
Extension rod (option)

Locating pin
Locating groove

Display unit

Measuring unit
Measuring unit
Bore gage checker

Fig. 2

Serial No.

Fig. 3Extension rod (option)

Fig. 4

Photo 1

During Use

Anvil

1. To measure a hole or bore, insert the guided side first followed by the anvil side. (Photo 2)
2. When measuring a hole or bore in the horizontal orientation, use with the anvil side downward.
3. When reconnecting the extension rod (option) after removing it once, make sure to perform the initial
setting again.

Depth measuring faces

ORIGIN button Locking screw
Display

Outside measuring jaws

SliderBattery cap

Finger rest

Beam

ABSOLUTE scale (enclosed)

Reference surface

Step measuring faces

Outside measuring faces

Before Use

ABS Coolant Proof Caliper (with Dust/Water Protection Conforming to IP67 Level)

1. Use a small amount of a rust preventing light oil to wipe the reference surface of＋the beam.
2. Move the slider all the way along the main beam to check whether the slider
moves smoothly without jamming.
3. Install an SR44 battery (Order No.938882) with the positive side of the battery
uppermost. (Fig. 1)+Terminal
4. After the battery is replaced, clean the measuring faces and bring them into
contact. Then press the ORIGIN button to perform the zero point setting. (Fig. 2)
5. Close the measuring faces after cleaning, and check the following:• Outside measuring faces: They are in good condition if light cannot beseen between them when they are held to the light. (Fig. 3)• If contamination or burrs exist on the faces they will not close together andlight will be seen between them. (Fig. 4)• Inside measuring faces: They are in good condition if a small amount oflight can be seen between them when they are held to the light.
6. If the instrument is used in the environment exposed to oil (mist) and dirt, it isrecommended to use the Coolant Proof Caliper with Dust/Water Protection model.

①

SR44
②
−
−Terminal

Fig. 1

Fig. 2〇×
Fig. 3

During Use

Fig. 4

1. Make sure to apply constant force during measurement, and measure an object as close as possible to the root of the jaws. It is better toavoid measurement with the tip of the jaws. (Fig. 5)
2. Do not measure an object with the measuring faces tilted. (Fig. 6)

Guide

Photo 2
If the instrument is damaged due to being dropped or struck hard, or for any other reason,
do not use it and contact us for repair.

Fig. 6
Fig. 5
If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
After Use
1. Check for damage to the instrument and clean it.
2. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
3. Do not clean the contact point by disassembling.

9

1. Check for damage to the instrument and clean it.
If the instrument, whether it is dust/water protection model or not, is used at a place where soluble cutting oilor the like is used, be sure to perform rust prevention treatment after cleaning.
2. Open the outside measuring jaws by approximately 0.2 to 2 mm, leave the locking screw untightened, andthen store the instrument. (Fig. 7)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
Fig. 7
4. When storing the instrument for a long time, be sure to remove the battery.

10

Calipers

Calipers

Dial Calipers

Vernier Calipers
Depth measuring faces
Inside measuring jaws

Inside measuring faces
Inside measuring jaws

Dial

Locking screw

Rack

Locking screw
Beam

Depth measuring faces

Inside measuring faces
Beam

Main scale

Main scale
Bridge stopper

Reference surface
Outside measuring jaws

Outside measuring jaws

Bezel Finger rest
Bezel clamp screw

SliderVernier scale Finger rest

Reference surface

Step measuring faces

Outside measuring faces

Outside measuring faces

Step measuring faces

Before Use

Before Use
1. Use a small amount of a rust preventing light oil to wipe the reference surfaceof the beam.
2. Move the slider all the way along the main beam to check whether the slider
moves smoothly without jamming.
3. Close the measuring faces after cleaning, and check the following:• Outside measuring faces: They are in good condition if light cannot be seen
between them when they are held to the light. (Fig. 1)
If contamination or burrs exist on the faces they will not close together andlight will be seen between them. (Fig. 2)• Inside measuring faces: They are in good condition if a small amount of light
can be seen between the faces when they are held to the light.
• Check the zero point. (Fig. 3)〇×
Fig. 1

Fig. 3Fig. 2

During Use
1. Read the graduations from directly above the dial to avoid parallax error. (Fig. 4)
2. Make sure to apply constant force during measurement, and measure an object as close as possible to the root of the jaws. It is better toavoid measurement with the tip of the jaws. (Fig. 5)
3. Do not measure an object with the measuring faces tilted. (Fig. 6)〇 × 〇× ×
Fig. 4

Fig. 5

1. Use a small amount of a rust preventing light oil to wipe the reference surface of the beam.
2. Move the slider all the way along the main beam to check whether the slider moves smoothly
without jamming.
3. After cleaning, check the following by closing the measuring faces:• Outside measuring faces: They are in good condition if light cannot be seen between them when
they are held to the light. (Fig. 1)
If contamination or burrs exist on the faces they will not close together and light will be seen
between them. (Fig. 2)• Inside measuring faces: They are in good condition if a small amount of light can be seen
between the faces when they are held to the light. (Fig. 1)• Check the zero point. (Fig. 3)

1. Check for damage to the instrument and clean it.
If the instrument is used at a place where soluble cutting oil or the like is used, be sure to perform rustprevention treatment after cleaning.
2. Open the outside measuring jaws by approximately 0.2 to 2 mm, leave the locking screw untightened,
and then store the instrument. (Fig. 7)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
Fig. 7

11

Fig. 2

During Use

Fig. 3

1. Read the scale graduations from directly above the dial to avoid parallax error. (Fig. 4)
2. Make sure to apply constant force during measurement, and measure an object as close as possible to the root of the jaws. It is better toavoid measurement with the tip of the jaws. (Fig. 5)
3. Do not measure an object with the measuring faces tilted. (Fig. 6)

Fig. 6

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use

Fig. 1

×

Fig. 4

Fig. 5

Fig. 6

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
1. Check for damage to the instrument and clean it.
If the instrument is used at a place where soluble cutting oil or the like may attach, be sure to perform
rust prevention treatment after cleaning.
2. Open the outside measuring jaws by approximately 0.2 to 2 mm, leave the locking screw untightened,
and then store the instrument. (Fig. 7)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
Fig. 712

Calipers

Calipers

Long ABSOLUTE Digimatic Calipers

ABSOLUTE Coolant Proof Inside Calipers

Inside measuring faces
Inside measuring jaws Locking screw
ORIGIN button
Display

Outside measuring jaws

Beam

ABSOLUTE scale (enclosed)

Locking screw
Display

Beam

ABSOLUTE scale (enclosed)

Reference surface

Battery cap Finger rest
Slider

Reference surface
SliderOutside measuring faces

Battery cap

ORIGIN button
Fixed jaw

Finger rest

Moving jaw

Inside measuring
faces

ABS Coolant Proof Carbon Fiber Caliper (with Dust/Water Protection)

Before Use
1. Use a small amount of a rust preventing light oil to wipe the reference surface of the beam.
2. Move the slider all the way along the beam to check whether the slider moves smoothly without
jamming.
3. Install an SR44 battery (Order No.938882) with the positive side of the battery uppermost. (Fig. 1)
4. After the battery is replaced, clean the measuring faces and bring them into contact. Then press the
ORIGIN button to set the zero point.
5. Close the measuring faces after cleaning, and check the following:•Outside measuring faces: They are in good condition if light cannot be seen between them when
they are held to the light. (Fig. 2)•If contamination or burrs exist on the faces they will not close together and light will be seen
between them. (Fig. 3)•Inside measuring faces: They are in good condition if a small amount of light can be seen between
them when they are held to the light.
6. If the instrument is used in the environment exposed to oil (mist) and dirt, it is recommended to use
the Coolant Proof Caliper with Dust/Water Protection model.

＋

SR44

①

②
−
−Terminal+Terminal

1. Use a small amount of a rust preventing light oil to wipe the reference surface of the beam.
2. Move the slider all the way to check whether the slider moves smoothly without jamming.
3. Install an SR44 battery (Order No.938882) with the positive side of the battery uppermost. (Fig. 1)
4. When starting the measurement, or replacing the battery, clean the measuring surfaces and bring them lightly together.
Then press the ORIGIN switch to set the origin. (Fig. 2)

Fig. 1＋〇×
Fig. 2

Fig. 3

During Use
1. Make sure to apply constant force during measurement, and measure an object as close as possible to the root of the jaws. It is better toavoid measurement with the tip of the jaws. (Fig. 4)
2. For a large caliper, it is recommended to operate measurement with two people, one person to make the measurement and one person to
support the caliper. This will minimize bending of the reference surface of the beam and therefore minimize measurement error from this cause.
3. Do not measure an object with the measuring faces tilted. (Fig. 5)

Fig. 4

Before Use①

Fig. 2SR44②−−Terminal+Terminal
Fig. 1

During Use
1. Make sure to apply constant force during measurement, and measure an object as close as possible to the root of the jaws. It is better toavoid measurement with the tip of the jaws. (Fig. 3)
2. Do not measure an object with the measuring faces tilted. (Fig. 4)〇×
Fig. 3Fig. 5

Fig. 4×

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use

After Use

1. Check for damage to the instrument and clean it.
If the instrument, whether it is dust/water protection model or not, is used at a place where soluble
cutting oil or the like is used, be sure to perform rust prevention treatment after cleaning.
2. Open the outside measuring jaws by approximately 0.2 to 2 mm, leave the locking screw untightened,
and then store the instrument. (Fig. 6)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
Fig. 6
4. When storing the instrument for a long time, be sure to remove the battery.

1. Check for damage to the instrument and clean it.
If the instrument is used at a place where soluble cutting oil or the like is used, be sure to perform rustprevention treatment after cleaning.
2. Open the outside measuring jaws by approximately 0.2 to 2 mm, leave the locking screw untightened,
and then store the instrument. (Fig. 5)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
Fig. 5
4. When storing the instrument for a long time, be sure to remove the battery.

13

14

×

Calipers

Height Gages

ABSOLUTE Coolant Proof Offset Centerline Calipers

Digimatic Height Gages
Before Use

Column tie

Fixed jaw

Locking screw
Display

Battery cap

Beam

ABSOLUTE scale (enclosed)

Main column
SupportingcolumnSlider clamp

Reference surface

SliderORIGIN button

1. Set the scriber as close to the main column as possible.
2. Clean the columns, base reference surface, scriber mounting
surface, and scriber measuring face.
3. Clean the precision granite surface plate on which the heightgage will be used.
4. Move the slider throughout its range to check that the
movement is smooth without jamming.
5. Install an SR44 battery (Order No.938882) with the positiveside of the battery uppermost. (Fig. 1)
6. After the battery is replaced, bring the measuring face ofthe scriber into contact with the surface plate and press the
PRESET button to perform the zero point setting. For ABSOLUTE
Digimatic Height Gages, perform zero setting by pressing the
ORIGIN button after bring a scriber measuring face contact withthe base reference surface.
* When carrying the instrument hold it with both hands with one
on the slider, and the other on the base. (Photo 1)

ColumnPreset/Ball diameter compensation
mode selection switch

Feed wheel
SliderFinger rest

Fixed and moving jaws
are offset to allow for
the different heights of
the holes

Moving jaw

Power ON/OFF button
Zero-set/ABS button

Jaw
Battery cap

Before Use

Scriber clamp

1. Use a small amount of a rust preventing light oil to wipe the reference surface of the beam.
2. Move the slider all the way to check whether the slider moves smoothly without jamming.
3. Install an SR44 battery (Order No.938882) with the positive side of the battery uppermost. (Fig. 1)
4. When starting the measurement, or replacing the battery, clean the measuring surfaces and bring them into contact.
Then press the ORIGIN switch to set the origin. (Fig. 2)
5. Check the following by contacting the fixed jaw and the moving jaw:
• Contact surfaces: They are in good condition if light cannot be seen between them when they are held to the light. (Fig. 3)• If contamination or burrs exist on the faces they will not close together and light will be seen between them. (Fig. 4)
＋

①

SR44
②

Scriber＋

Scriber measuring face②

Base reference surface
Base−−Terminal+Terminal

Fig. 1

Fig. 2

Photo 1

During Use
1. During measurement, rotate the feed wheel slowly when
applying a constant measuring force. (Photo 2)• Coarse/fine feed switching
Coarse feed or fine feed can be selected by pulling or pushing thehandle of the slider feed wheel. (Fig. 2)−−Terminal+Terminal

SR44①

Fig. 1
Fig. 3

During Use

Fig. 4

Fig. 2

1. Make sure to apply consistent force on all measurements, and stabilize the measuring faces. (Fig. 5)
2. Do not measure an object with the measuring faces tilted. (Fig. 6)

ABSOLUTE Digimatic Height Gage

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
1. Check for damage to the instrument and clean it.
If the instrument is used at a place where soluble cutting oil or the like is used, be sure to perform rustprevention treatment after cleaning.
2. Open the moving jaws by approximately 0.2 to 2 mm, leave the locking screw untightened, and then store
the instrument. (Fig. 7)
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
4. When storing the instrument for a long time, be sure to remove the battery.
Fig. 715

Fine feed

To use fine feed, pull
the handle out androtate its sleeve.

Photo 2

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

Fig. 6

Fig. 5

Coarse feed

To use coarse feedpush the handle
in and rotate thewhole wheel.

×

After Use
1. Check for damage to the instrument and clean it.
2. When the height gage will not be used for some time leave the scriber unclamped and just above, but nottouching, the surface plate. This is to avoid risk of personal injury by accidental contact with the scriber tip.
3. Be especially careful not to let the scriber protrude over the edge of the surface
plate at any time. (Photo 3)
4. Be sure to turn off the power before storing.
5. Store the instrument in a room free of excessive heat and moisture, also dust andoil mist.
6. If the instrument will not be used for a long time, remove the battery before
storage and cover the unit with the supplied dust cover.
Photo 316

Height Gages

Depth Gages

Dial Height Gages

Depth Micrometers (Interchangeable Rod Type)
Before Use

Column tie
Main column
Supportingcolumn1. Set the scriber as close to the main column as possible.
2. Clean the columns, base reference surface, scriber mounting
surface, and scriber measuring face.
3. Clean the precision granite surface plate on which the heightgage will be used.
4. Move the slider throughout its range to check that the movement
is smooth without jamming.
5. Bring the measuring face of the scriber into contact with thesurface plate and set the dial pointer and counters at zero toperform the zero point setting. (Fig. 1)* When carrying the instrument hold it with both hands with one
on the slider, and the other on the base. (Photo 1)

ColumnSlider clamp
Feed wheel

Reset button

SliderUp counter

Fixing jaw

Down counter

Scriber clamp

Pointer
Dial

0
90

0

10

90

10

Scriber

80 20

70

80 20

30

70

60

40

60

50

0 0 0 mm30

40

0 0 0 mm50

Scriber measuring faceFig. 1

Scriber holder

Base reference
surface

Photo 1

During Use

Base

Base
Base reference
surface

Base

Base reference
surface
Measuringface

SleeveClamp

Thimble cap

ThimbleRatchet Stop

Measuringface
Output connector

Rod

ThimbleRatchet Stop
SleeveThimble cap

Clamp nut

DisplayRod
PRESET button

Before Use

Rod collar

1. Check to see whether the thimble moves smoothly without any jamming or unevenness by rotating it all the way through its range.
2. For a digimatic type, replace button cell with an SR44 type if necessary (Order No.938882).
3. Remove dust or dirt from the reference surface and measuring surface.
4. Slowly contact the measuring surfaces while pressing the reference surface against a flatness-assured surface such as precision surface
plate. Then, rotate the ratchet 3 to 5 stops to apply a constant force to check the zero-point.
If the reference point is over 25mm, use gauge blocks to check the setting. (Fig. 1)
If the reference point is off, align the zero point by rotating the sleeve.
5. When changing the rods, remove dust or dirt from the contacting surfaces on the rod collar and spindle end. (Photo 1)
6. When tightening the output connector cover and battery ensure that the seals are correctly seated so that they do not protrude (only for
Digimatic models). (Fig. 2)
Reference point: 25mm or more

1. Read the dial graduations from directly above to avoid parallax
error. (Fig. 2)
2. During measurement, rotate the feed wheel slowly when
applying a constant measuring force. (Photo 2)

Spindle end

Rod collar

Reference point: 0mm
Gauge
BlocksPrecision surface plate

Seal

Fig. 1

During Use
Photo 2

Vernier Height Gage

Fig. 2

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
1. Check for damage to the instrument and clean it.
If the instrument is used at a place where soluble cutting oil or the like is used, be sure to perform rust prevention treatment after cleaning.
2. When the height gage will not be used for some time leave the scriber unclamped and just above, but not touching, the surface plate. This
is to avoid risk of personal injury by accidental contact with the scriber tip.
3. Be especially careful not to let the scriber protrude over the edge of the surface
plate at any time. (Photo 3)
4. If the instrument will not be used for a long time, cover the unit with the supplied
dust cover.
5. Store the instrument in a room free of excessive heat and moisture, also dust andoil mist.
Photo 317

Fig. 2

Photo 1 Parts to be cleaned
0

1. Do not retract the spindle too far past the upper limit of the measuring range,
Thimbleas this can damage some types of digital micrometer. (Fig. 3)
Sleeve2. Read the graduations seen directly from above to avoid parallax error. (Fig. 4)
Index line
Fig. 3Fig. 40
3. The width of the graduation lines represent approximately 2μm to aid in
reading to the nearest 1μm. (Fig. 5)
Approx. -1μm
Approx. -2μm
4. If any error occurs or the count is displayed abnormally, remove the battery
and reinstall it (only for Digimatic models).
Index line on sleeve Thimble graduation line Index line on sleeve Thimble graduation line
5. Make sure that the rod, the base and the base reference surface are always
Fig. 5protected from impact.
0 point setting to allow for6. If using the instrument for an extended period of time, regularly check (and if necessary adjust) the reference
thermal expansion.

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
1. Check for damage to the instrument and clean it. If the instrument was used at a place where soluble cutting oil contamination was likely,
be sure to perform rust prevention treatment after cleaning.
2. Release the clamp, and then store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
3. When storing the instrument for a long time, apply a rust preventing light oil to the rod and the base reference surface as a rust prevention
treatment and remove the battery.

18

Depth Gages

Depth Gages

ABSOLUTE Digimatic and Vernier Depth Gages

ABSOLUTE Digimatic and Dial Depth Gages

ABSOLUTE Digimatic Depth Gage
Base
Beam

Vernier Depth Gage
Locking screw
ABSOLUTE scale(enclosed)

ABSOLUTE Digimatic Depth Gage
Base

Display

Beam

Lifting lever

Locking screw

Display

Base reference
surface

ORIGIN button

Base reference
surface

Battery cap

Lifting lever

Washer

Dial pointer

Revolution counter

Measuring face

Finger rest

Measuring face

Dial Depth Gage

HolderBase
Contact point
Base reference surface

Before Use
1. Use a small amount of a rust preventing light oil to wipe the reference surface of the beam.
2. Move the base all the way along the main beam to check whether the slider moves smoothly without jamming.
At this time, use caution since the vernier-type main scale may separate from the base. (Fig. 1)
3. For a digimatic type, use an SR44 battery (Order No. 938882). (Fig. 2)
4. Set up the origin point on a flatness-assured surface such as precision surface plate. (Fig. 3)
5. If using a vernier-type scale equipped with fine feed, adjust the feed screw so that there is always clearance (feed gap) between the finefeed device and the base. (Fig. 4)
Clearance (feed gap)

Base
Spring plate

Beam

＋

①

+Terminal

SR44

1. Remove dust or dirt from the reference surface and the contact point.
2. Make sure that a washer is in position on the lifting lever fixing part.
3. Move the spindle all the way along the main beam to check whether the spindle moves smoothly without jamming.
4. For a digimatic type, use an SR44 battery (Order No. 938882). (Fig. 1)
5. Use a contact point with a diameter smaller than the diameter of the base hole. (Fig. 2)
6. Set up the reference point on a flatness-assured surface such as a precision surface plate.
7. When using extension rods, use a master gage (or gauge blocks) to set up the reference point. (Fig. 3)②

Extension rod−−Terminal

Master gauge

Fig. 2

Fig. 1

Before Use

Granite surface plate

Fig. 3Fig. 4

Feed screw

Contact point

SR44

Granite surface plate

Fig. 1

Fig. 2

Fig. 3

During Use
1. Perform measurement while the reference surface is fully in contact with the workpiece. (Fig. 5)
2. Read the scale graduations from directly above to avoid parallax error. (Fig. 6)〇 ×
Fig. 5

During Use
1. Do not move the contact point rapidly nor apply force in the transverse direction, otherwise operation andaccuracy may be adversely affected. (Fig. 4)
2. For Digimatic types, the letter "E" at the end of the display that appears momentarily during spindle
movement does not indicate a fault. However, if it is displayed continuously then repair is necessary. (Fig. 5)
3. Read the scale graduations from directly above to avoid parallax error.
4. If the total length of extension rods exceeds 110mm, use the gage in the vertical orientation (keeping thecontact point downward).

Fig. 6

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
1. Check for damage to the instrument and clean it with dry cloth, etc.
If the instrument was used at a place where soluble cutting oil or is used, be sure to perform rust prevention treatment after cleaning.
2. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.
3. When storing the instrument for a long time, be sure to remove the battery.

19

Fig. 4

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it andcontact us for repair.

Fig. 5After Use
1. Check for damage to the instrument and clean it with dry cloth, etc.
2. If the instrument is used at a place where soluble cutting oil or is used, be sure to perform rust prevention treatment after cleaning.
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.

20

Indicators

Indicators

Digimatic Indicators

Dial Indicators

Display

1. Use a dry cloth or a cloth moistened with alcohol to clean thespindle without lubrication. (Fig. 1)
2. Make sure that the pointer and the spindle move smoothly.
3. If the pointer and revolution counter are significantly out of
position at the rest point (where the spindle is fully extended)(Fig. 2), the spindle or works may be damaged. Contact
Mitutoyo for repair without trying to disassemble any part of theworks yourself. (Fig. 3)
4. If the instrument is to be used in an environment thick with oil
mist or dust, the water/dust-proof type is recommended.

Cap

Pointer
Graduation
plate
Revolution
counter

Bezel
2
3

SR44

Fig. 1

Contact point

Contact point

Fig. 3

During Use

××
2
3

Lug

1 0 9
4 5 6

8
7

Lug
Lug

Fig. 5

Fig. 4

2
3

1 0 9
4 5 6

8
7

Fig. 6

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.
12.

8Fig. 4

Fig. 5

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

38.

8After Use
1. Check for damage to the instrument and clean it with dry cloth, etc.
2. Do not lubricate the spindle.
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.

8

1. Check for damage to the instrument and clean it with dry cloth, etc.
2. Do not lubricate the spindle.
3. If the instrument will not be used for a long time, remove the battery before storage.
4. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.

38.

8

22

30°

After Use

5

12.

21

Fig. 3530°

Photo 1

Fig. 2

1. Do not move the spindle rapidly nor apply force in the transverse
direction, otherwise operation and accuracy may be adversely
affected. (Fig. 4)
2. Use a holding fixture that will not deflect significantly during
normal use. (Fig. 5)
3. Clamp the lug so that the spindle is square to the measuringface. (Fig. 6)

1. Do not move the spindle rapidly, apply force in the transverse
direction nor the cap, otherwise operation and accuracy may be
adversely affected. (Fig. 3)
2. Use a holding fixture that will not deflect significantly during
normal use.
3. Clamp the lug so that the spindle is square to the measuringface. (Fig. 4)
We offer lifting levers and releases to operate the spindle.
4. The letter "E" appearing temporarily at the end of the display
while the spindle is moving is normal. However, if it is displayed
continuously when the spindle is at rest then repair is necessary.
(Fig. 5)×〇

Fig. 1

SpindleFig. 2

During Use

××

8
7

10

Spindle

4 5 6

Stem

0.2mm

Stem

1 0 9

30°

Battery compartment cap

1. Use a dry cloth or a cloth moistened with alcohol to clean thespindle without lubrication.
2. Move the spindle throughout its range to check that the
movement is smooth without stickiness or jamming.
3. Use an SR44 battery (Order No.938882). (Fig. 1)
4. When setting the zero point, retract the spindle at least 0.2mm
from the rest position. (Fig. 2)
5. To avoid measuring error due to the cosine effect, ensure thatthe spindle is accurately aligned with the intended directionof measurement. (Photo 1) Also note that unevenness of thereference surface may cause measuring errors.
6. If the instrument is to be used in an environment thick with oil
mist or dust, the water/dust-proof type is recommended.

10

Output connector cap

Before Use

30°

Cap

Before UseIndicators

Indicators

Dial Test Indicators (Lever-operated Dial Indicators)

Thickness Gages

Before Use
1. Clean the contact point with a dry cloth.
2. Check the bentness of pointer and inclination of pointer metal(Fig. 1).
Then, move the stylus throughout its range to check that the
movement is smooth without stickiness or jamming.
3. Be sure to use the stylus with standard length according to models,otherwise a large measuring error may be caused. (Fig. 2)

Stem

Digimatic type

Dial typeTop of spindle

Pointer

Display

Back coverSpindle lifting lever

Revolution
counter

Frame

Pointer
Pointermetal

SpindleContact point
Anvil

Fig. 1

Fig. 2

Bezel

Stylus

1. Use a holding fixture that will not deflect significantly during
normal use. (Fig. 3)
2. Do not disassemble or modify the indicator. Failure to observe
this may cause inaccuracy or malfunction.
3. A Dial Test Indicator's scale factor depends on the angle
between the directions of movement of contact point andworkpiece, and is only unity when these are aligned. In practice,
to avoid significant error, if the angle (Fig. 4) is kept less than
10° during measurement then the effect of a change in scale
factor can be ignored. If this angle cannot be kept small then afactor can be applied to the dial reading to compensation forthis 'cosine effect' as per the table below.
4. Be sure not to apply force to the bezel and the stylus in lateral
direction (Fig. 5). It affects the operation and accuracy.

Before Use

Direction of workpiece movement
Direction of contact point movement

During Use

Direction of workpiece movement
Direction of contact
point movement

Fig. 3Fig. 5××

Fig. 4Comp. coefficient
(k)
10°
0.98
20°
0.94
30°
0.86
40°
0.76
50°
0.64
60°
0.5
True value (approx. value) = Scalereading × Comp. coefficient

Angle ( )If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
1. Check for damage to the instrument and clean it with dry cloth, etc.
2. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.

7301

547-301

During Use
DialSpindleContact point
Anvil

Indicator stem
clamping screw

Washer

1. Clean the spindle, contact point, and anvil with a dry cloth or one moistened with alcohol.
2. Make sure that a washer is used between the spindle lifting lever and the spindle. (Photo 1)
3. Do not loosen any retaining screws unnecessarily. ( The contact point, anvil, back lid, top of spindle,
spindle lifting lever, and indicator fixing part)
4. Move the spindle throughout its range to check that the movement is smooth without stickinessor jamming.
5. Check that zero is indicated when the contact point and the anvil are in contact.
6. For a digimatic type, use an SR44 battery (Order No. 938882). (Fig. 1)

Photo 1

SR44

Fig. 1

1. Do not move the spindle rapidly nor apply force in the transverse direction, otherwise operation and accuracy
may be adversely affected. (Fig. 2)
2. The letter "E" appearing temporarily at the end of the display while the spindle is moving is normal. However,
if it is displayed continuously when the spindle is at rest then repair is necessary. (Fig. 3)
3. If the zero-point is displaced during measurement, clean the contact point and anvil and reset the zeropoint.
4. Do not loosen the spindle stem clamping screw.
5. Do not attempt to replace the flat type of contact point. Contact Mitutoyo if replacement is needed.
6. If the instrument is in use for an extended period, regularly reset the zero point to allow for the effect oftemperature change on the frame.

Fig. 2

Fig. 3
If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it and contact us for repair.

After Use
1. Check for damage to the instrument and clean it with dry cloth, etc.
2. Do not lubricate the spindle.
3. To prevent a flat contact point from wringing to the anvil, insert a piece of oiled paper between
them before storage. (Photo 2)
4. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.

Contact
point
Oiled paper
Anvil

Photo 223

×24

StandGauge Blocks

Transfer and Comparator Stands

Rectangular Gauge Blocks

Dial Gage Stand

Comparator Stand

ColumnColumnFine adjustment

Before Use

Granite Comparator Stand
ColumnBracketColumn clamp

BracketFine adjustment

Column clamp

Stem mounting hole

Stem mounting hole
Stem mounting hole
Indicator clamp

BracketColumn clamp

Fine adjustment

1. To obtain maximum benefit from the very high accuracy of gauge blocks, use them in a thermally stable environment. Apply compensation
to measurements if the ambient temperature is significantly different from 20°C and the workpiece does not possess a similar coefficient ofthermal expansion to the blocks.
2. Clean the measuring faces of all gauge blocks in use to prevent dust or dirt contamination affecting measurement results. (Cleaning
paper : Order No.600006).
3. Check if there are burrs on the measuring faces using an optical flat (Order No.158-118). (Photo 1)
4. If burrs exist, remove them using Ceraston (Order No.601645) or an Arkansas stone (commercial product). (Photo 2)

Indicator clamp

Indicator clamp

Granite surface plate
Steel anvil

Steel anvil

Before Use

Photo 1

1. Clean the anvil or the granite surface using a dry cloth or a cloth moistened with alcohol.
2. Make sure to hold the bracket firmly when moving it up or down.
3. Mount the indicator in the stem mounting hole and tighten the clamp.
4. Move the bracket up and down all the way to ensure it moves smoothly.
5. To finely adjust the measuring position, use the fine feed knob.
6. After adjusting the measuring position, tighten the column clamp before starting measurement.
7. For the zero-point adjustment of the gage, it is recommended to use a gauge block or a master workpiece.
(Fig. 1)Gauge block or

Photo 2

During Use
1. Handle gauge blocks with great care to avoid damage to the measuring surfaces due to impact with each other or by being dropped(Fig. 1). Damage, such as burrs, will adversely affect the accuracy of any measurements made.
2. To wring two gauge blocks together, apply thin grease or oil to the measuring surfaces and wipe off the excess leaving only a very thinlayer adhering. Note that if there is insufficient oil or grease then wringing may be ineffective and block wear accelerated over time.

master workpiece

Fig. 1

During Use
1. Avoid repeatedly touching the anvil or the granite surface directly with the contact point, or dropping
the contact point abruptly. (Fig. 2)
2. If a scratch is made on the anvil or the granite surface by any chance, remove any burrs with a lightly
abrasive stone before continuing measurement.

If the instrument is damaged due to being dropped or struck hard, or for any other reason, do not use it
and contact us for repair.

×
Fig. 2After Use

Fig. 1After Use
1. Check for damage to the blocks and, if found, recondition them by the method described above.
2. After using steel gauge blocks, them clean and then apply rust prevention treatment using a cloth moistened with anti-corrosion oil.
3. A convenient kit (Order No. 516-650E, see page 27) is available for gauge block maintenance and cleaning before storage.
4. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.

1. After using the instrument, check for damages on each part and use a dry cloth to clean.
2. Apply rust prevention treatment to the column and anvil without fail.
3. Store the instrument in a room free of excessive heat and moisture, also dust and oil mist.

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Mitutoyo Network

Products Used for Maintenance of Measuring Instruments

Download service at Mitutoyo website
Download of the brochure is available from the top page of Mitutoyo website by the following procedures:

Mitutoyo products
Micrometer oil

Maintenance kit for gauge blocks

Lubrication and rust-prevention oil

Maintenance kit for gauge
blocks includes all the necessary
maintenance tools for removing
burrs and contamination, and for
applying anti-corrosion treatment
after use, etc.

Order No.207000*

516-650E
Order No.516-650E
Included items———————————————————————————— Order No.
(1) Ceraston (both sides finished by lapping) (100×25×12mm)———— 601645(2) Optical flat OF-45B (ø45, thickness: 12mm, Flatness 0.2 μm) ———158-117
Used to check the wringing of thin gauge blocks and for the presence —of burrs.
(3) Tweezers———————————————————————————600004
Used for handling thin gauge blocks.
(4) Blower brush—————————————————————————600005
Used for blowing dust from measuring surfaces.
(5) Cleaning paper (lens paper) (82×304mm, 500 Sheets)———————600006
Used for wiping off rust prevention oil and contamination. Lint free.
(6) Artificial leather mat (B4 size)——————————————————600007
Used as a gauge block mat in order to avoid scratches on the work table.
(7) Reagent bottle (polyethylene container, 100ml)—————————— 600008
Bottle of wiping solution.
(Mitutoyo employs n-Heptane for solvent.)(8) Gloves————————————————————————————600009
Used for handling large gauge blocks. Effective for the prevention of
corrosion and thermal expansion.

207000(Volume: 32ml)*Not available in certain countries and regions

Measuring face cleaning paper
Cleaning paper for micrometer measuring faces (1,000 sheets)
Order No.04AZB581

Ceraston
Ceraston is a very flat abrasive ceramic block used for removing
burrs on hard, flat, precision surfaces.

Order No.601644
150 (W) × 50 (D) × 20 (H) mm

Order No.601645
100 (W) × 25 (D) × 12 (H) mm

Other products on the market (for reference)
Paper wipes
KimWipes S-200

Glass cleaner
PPC cleaner

For removing contamination,such as dust, from instrument
surfaces.

For cleaning granite surface plates.

Contact: NIPPON PAPER CRECIA Co., LTD.

Contact: SANWAKOGYO CO., LTD

If you are interested in any of our products listed in the General
Catalog, please contact your local Mitutoyo sales office, or visit
Mitutoyo local corporations website accessing from MITUTOYOWorldwide top page.
Also, the catalog can be downloaded in the PDF data (partiallyexcluded) at our website. (See the above image.)
URL: https://www.mitutoyo.co.jp/eng/

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247 2201(5)g-(CM)NE-(JP14), Printed in Japan

Coordinate Measuring Machines

Vision Measuring Systems

Form Measurement

Optical Measuring

Whatever your challenges are, Mitutoyo
supports you from start to finish.
Mitutoyo is not only a manufacturer of top quality
measuring products but one that also offers qualified
support for the lifetime of the equipment, backed up
by comprehensive services that ensure your staff canmake the very best use of the investment.
Sensor Systems

Test Equipment

Digital Scale and DRO Systems

Small Tool Instruments
and Data Management

Apart from the basics of calibration and repair,
Mitutoyo offers product and metrology training,as well as IT support for the sophisticated software
used in modern measuring technology. We can also
design, build, test and deliver measuring solutions
and even, if deemed cost-effective, take your criticalmeasurement challenges in-house on a sub-contract
basis.

Find additional product literatureand our product catalogue
https://www.mitutoyo.co.jp/global.html
Mitutoyo Corporation
Our products are classified as regulated items under Japanese Foreign Exchange and Foreign Trade Law.
Please consult us in advance if you wish to export our products to any other country.
If the purchased product is exported, even though it is not a regulated item (Catch-All controls item), the customer service
available for that product may be affected. If you have any questions, please consult your local Mitutoyo sales office.
Note: Product illustrations are without obligation. Product descriptions, in particular any and all technicalspecifications, are only binding when explicitly agreed upon.
MITUTOYO and MiCAT are either registered trademarks or trademarks of Mitutoyo Corp. in Japan and/or other countries/regions.
Other product, company and brand names mentioned herein are for identification purposes only and may be thetrademarks of their respective holders.

20-1, Sakado 1-Chome,
Takatsu-ku, Kawasaki-shi,
Kanagawa 213-8533, Japan
T +81 (0) 44 813-8230
F +81 (0) 44 813-8231
https://www.mitutoyo.co.jp