Caliper Gauge
As to internal caliper gauge IM-880 series, the distance between contact points facing outside is firstly set at standard dimension with ring gaugeor micrometer. Then, it is measured by inserting contact point into internal dimension part to be measured after its outer dial of which moves
together with rotated bezel is set at “0”. The displacement of indicator from “0” point of outer dial is to be measured at that time. The value adding
to the read displacement to standard dimension or deducting it from standard dimension is the dimension of internal diameter. This series
attaches spare contact point which cam set accurate dimension corresponding to size of internal dimension. External caliper gauge is opposite,namely reading the value by holding work piece with 2 contact points facing outside.

Internal Dial Caliper Gauge• These gauges are designed for use in measuring deep internal diameter of bores of castings etc, and for internal reading in fabrications.
Clearance has been provided for use in recessed bores. The convenient retraction lever allows one-hand operation.

IM-1

IM-2

Maximum measuring depth 180mmGraduation 0.1mm
Measuring Range 10~100mm

Maximum measuring depth 130mm
Graduation 0.1mm
Measuring Range 10~100mm

IM-4

IM-5

Maximum measuring depth 100mm
Graduation 0.01mm
Measuring Range 10~30mm

IM-1,2,4

Specifications
（2.5）

R1.5
φ2.5

contact point
height24

Measuring Range

（2.5）

IM-5
4

Dimensions

Maximum measuring depth 150mm
Graduation 0.01mm
Measuring Range 20~40mm

0.1

MeasuringRange(mm)
10~100Indication
Error(mm)±0.1

5 or less

500

0.1

10~100±0.1

18025 or less620

IM-40.01

10~30±0.0210025 or less500

IM-50.01

20~40

±0.02

150

45 or less

600

Model

Graduation
(mm)

IM-1
IM-2

Maximum
Contact PointMeasuring Depth
Height(mm)(mm)
1302(N)

Weight(g)Internal size of workpiece is 10mm, 15mm, 20mm and 30mm or over against measuring applicable depth.
Measuring applicable depth

Maximum Measuring Depth

90Internal Size

10152030~

IM-1

355080130

IM-43550

80

100

Model
unit : mm

Internalsize

IM-2
IM-5

35–50–80

180140150unit : mmI have to measure theinner diameter of small
metal parts.

36

MeasuringForceInside of workpiece should be straightor round shape without step etc.

Caliper Gauge

Dial Depth Gauge• Internal caliper gauge to measure internal diameter of cylindrical
workpiece and recessed groove diameter. It can measure groove
diameter of "O" ring by modifying spare contact point.
• Set dimension within ±1mm (indication range 2mm) can becomparatively measured (880 series) by alternatively using auxiliary
spare contact point in accordance with measured dimension.

• Please set standard dimension within measuring range withmicrometer or ring gauge.

IM-881

IM-880Maximum Measuring Depth 75mm
Graduation 0.01mm
Measuring Range 30~62mm

ZS-4232.544.5

ZS-427

5.5ZS-426
ZS-428
ZS-42922~2565.5

28~3195.5

10φ4.5φ1.5

φ4.5

ZS-408SR0.526~298

Code No.

M2.5×P0.45

ZS-428,429

24~27

75.5

φ1.5

20~235

ZS-40930~3332~35

L23unit : mm

610.5

616.5

6ZS-412

unit : mmRange

4.5

SR0.5

30~38

7.5

13.5

7ZS-410~412

MeasuringL235.5

ZS-410ZS-411

L1L1

L236~44

M3.5×P0.6°

ZS-425Range

L1Dimension Table :Spare Contact Point (Option)

3

φ1.5

3.5

L218ZS-424

L1Measuring

M3.5×P0.6°

L2SR0.518

L1ZS-408,409

SR0.5

Dimension Table :Spare Contact Point (Option)
Code No.

ApM2.5×P0.45

ZS-423~427

φ1.5mm70

Dimensions :Spare Contact Point (Option)

m5m.7xpro

φ4.5x.

pro

Ap

Dimensions :Spare Contact Point (Option)

φ4.5

Maximum Measuring Depth 70mm
Graduation 0.01mm
Measuring Range 20~35mm

42~50
48~56

L154~62

L2unit : mm

7unit : mm

Dimensions : Spare Contact Point (Option)
φ4.5

ZS-414

M3.5×P0.6

M3.5×P0.6

φ2

φ1.5

Maximum Measuring Depth 90mm
Graduation 0.01mm
Measuring Range 55~153mm

φ4.5

ZS-413

IM-882

1SR5

1.

57SR

131513M3.5×P0.6

φ2

φ4.5

ZS-415~418

125

1.

SR

Dimension table：
Spare Contact Point (option)
LZS-413715ZS-415

23

ZS-41739

External Dimensions

Range
55~73
71~89

L87~105

ZS-41631103~121

ZS-41847135~153

Indicating Range(mm)MaximumGroove Depth

MeasuringModel119~137

Indication
Error(μm)

L

IM-880165

IM-882

183

IM-881

unit : mm

Measuring
Range(mm)Dimensions

φ62

B Minimum Groove WidthMoving ArmH

Code No.

Specifications
Graduation(mm)

13unit : mm

ZS-414ModelLmm
90

Entrance
Diameter
φDx.

pro

Ap

12

Measuring Force
(N)

170

Weight(g)IM-880

0.01

20~35

2±20

3 or less196

IM-881

0.01

30~62

2±20

3 or less218

IM-8820.01~55 153

2±20

3 or less240

unit : mm

Spare Contact Point
Code No.
ZS-423ZS-424ZS-425
ZS-426
ZS-427
ZS-428
ZS-429
ZS-408
ZS-409
ZS-410ZS-411
ZS-412
ZS-413ZS-414ZS-415
ZS-416
ZS-417
ZS-418

Measuring Range (mm)
20~23
22~25
24~27
26~29
28~31
30~33
32~35
30~38
36~44
42~50
48~56
54~62
55~73
71~89
87~105103~121119~137
135~153

Spare
Contact Point

Maximum Measuring
Depth
A (mm)

7075

90

A
Maximum Measuring Depth

Entrance
DiameterΦd (mm)*
15~18
15~18
16~19
18~21
20~23
22~25
24~27
24~32
27.4~35.4
33.4~41.4
39.4~47.4
45.4~53.4
45~63
54~72
70~88
86~104102~120118~136

Fixed Arm

Groove DepthH (mm)2.5
3.5444443
4.3
4.3
4.3
4.35
8.5
8.5
8.5
8.5
8.5

unit : mm

Minimum GrooveWidthB (mm)2.5

2.53.5*φD=Measuring Rang - 2H

37

Caliper Gauge

One Revolution Internal Dial Caliper Gauge

Dimensions

B Minimum Groove Width

Moving Arm

IM-880B

H

Maximum
Groove Depth

EntranceDiameter
φDSpareContact Point

IM-881B

Graduation 0.01mm
Measuring Range 19.3~35.7mm
AMaximum Measuring Depth

IM-882B

Graduation 0.01mm
Measuring Range 29.3~62.7mm

Graduation 0.01mm
Measuring Range 54.3~153.7mm

Fixed Arm

unit : mm

Specifications
Model

Graduation(mm)

Measuring
Range
(mm)

Indicating
range
(mm)

Indication
Error(µm)

Spare Contact Point

Measuring
Force(N)IM-880B

0.01

20〜35

1.4±203 or less

IM-881B

0.01

30〜62

1.4±203 or less

IM-882B

0.01

55〜153

1.4±203 or less

Code No.

ZS-423ZS-423ZS-424ZS-424ZS-425
ZS-425
ZS-426
ZS-426
ZS-427
ZS-427
ZS-428
ZS-428
ZS-429
ZS-426
ZS-426
ZS-427
ZS-408
ZS-409
ZS-410ZS-411
ZS-412
ZS-413ZS-414
ZS-415
ZS-416
ZS-417
ZS-418

ZS-423ZS-424ZS-424ZS-425
ZS-425
ZS-426
ZS-426
ZS-427
ZS-427
ZS-428
ZS-428
ZS-429
ZS-429
ZS-426
ZS-427
ZS-427
ZS-408
ZS-409
ZS-410ZS-411
ZS-412
ZS-413ZS-414ZS-415
ZS-416
ZS-417
ZS-418Rods

Measuring
Range (mm)−−−−−−−−−−−−−
ZS-646
ZS-646
ZS-646−−−−−−−−−−−

19.3〜20.7
20.3〜21.7
21.3〜22.7
22.3〜23.7
23.3〜24.7
24.3〜25.7
25.3〜26.7
26.3〜27.7
27.3〜28.7
28.3〜29.7
29.3〜30.7
30.3〜31.7
31.3〜32.7
32.3〜33.7
33.3〜34.7
34.3〜35.7
29.3〜38.7
35.3〜44.7
41.3〜50.7
47.3〜56.7
53.3〜62.7
54.3〜73.7
70.3〜89.7
86.3〜105.7
102.3〜121.7
118.3〜137.7
134.3〜153.7

Extension• IM-880 series dialcaliper gauges can measure internal
dimension up to measuring range in the right list by
installing extension rods. Standard products of spareextension rods can be used as it is.

Mounting Method ofSpare Contact PointSpanner

Spare Contact Point
Extenshion Rods(Optoin)

Hexagon lock nut
Fine adjustment enabled.

ArmSpanner is supplied as standard accessory.

38L

Entrance
DiameterφD (mm)*7075

90

Groove Depth
H (mm)

14.3
15.3
14.3
15.3
15.3
16.3
17.3
18.3
19.3
20.3
21.3
22.3
23.3
24.3
25.3
26.3
24
27.4
33.4
39.4
45.4
4554
70
86102
118

2.5
2.5
3.5
3.5
44
4
4
4
4
4
4
4
4
4
43
4.3
4.3
4.3
4.3
5
8.5
8.5
8.5
8.5
8.5

Groove Width
B (mm)

Weight(g)

2.5

196

2.5

218

3.5

240IM-880:

IM-881:

Spare Contact Point Extension Rods Measuring Range
ZS-423
34~37
ZS-42436~39
ZS-425
38~41
ZS-646
ZS-42640~43
L=7
ZS-42742~45
ZS-42844~47
ZS-42946~49
48~51
ZS-42350~53
ZS-42452~55
ZS-425
ZS-647
54~57
ZS-426
L=14
56~59
ZS-427
58~61
ZS-42860~63
ZS-42962~65
ZS-42364~67
ZS-424
66~69
ZS-425
ZS-648
68~71
ZS-426
L=21
70~73
ZS-427
72~75
ZS-428
74~77
ZS-42976~79
ZS-42378~81
ZS-42480~83
ZS-425
ZS-64982~85
ZS-426
L=28
84~87
ZS-427
86~89
ZS-428
88~91
ZS-429Spare Contact Point Extension Rods Measuring Range
60~68
ZS-40866~74
ZS-409
ZS-69372~80
ZS-410L=15
78~86
ZS-411
84~92
ZS-412
90~98
ZS-40896~104
ZS-409
ZS-694102~110
ZS-410L=30
108~116
ZS-411114~122
ZS-412120~128
ZS-408126~134
ZS-409
ZS-695132~140
ZS-410L=45
138~146
ZS-411144~152
ZS-412

Measuring range with extension rods (mm)Optional Extension RodsSpanner

Maximum
Measuring DepthA (mm)Measuring range with extension rods (mm)IM-882:

Measuring range with extension rods (mm)Spare Contact Point Extension Rods Measuring Range
151~169
ZS-413167~185
ZS-414
ZS-696183~201
ZS-415
L=48
199~217
ZS-416215~233
ZS-417231~249
ZS-418247~265
ZS-413263~281
ZS-414
ZS-697279~297
ZS-415
L=96295~313
ZS-416311~329
ZS-417327~345
ZS-418

Caliper Gauge

External Dial Caliper Gauge• These gauges are designed for use in measuring external dimension of thick and large measuring work piece or special shape products which
seem to be difficult to measure.
• Special order can be produced.

GM-1

GM-2

Maximum measuring depth 125mm
Graduation 0.1mm
Measuring Range 0〜90mm

Maximum measuring depth 250mm
Graduation 0.1mm
Measuring Range 0〜90mm

GM-3

Maximum measuring depth 400mm
Graduation 0.1mm
Measuring Range 0〜90mm

Dimensions

Overall length of GM-3 is large as 635mm.

24（32）

H2H490（110）

Measuring Range

H3 H1

Maximum Measuring Depth( ):GM-3

Dimension Table
Model
GM-1
GM-2
GM-3

H1255060

H2406070unit : mm

H3255060

H4406080
unit : mm

Dimensions : GM-8

241490R18080

130120GM-8
Maximum measuring depth 130mm
Graduation 0.1mm
Measuring Range 0〜80mm

Specifications

unit : mm

ModelGraduation(mm)

Measuring Range(mm)

Indication Error(mm)Maximum measuring
depth (mm)Measuring Force(N)Weight(g)

GM-1

0.1

0〜90±0.1

125

5 or less

530

GM-2

0.1

0〜90±0.1

250

5 or less

800

GM-3

0.1

0〜90±0.2

400

10 or less

1,400

GM-80.1

0〜80±0.1

130

5 or less

550

39

Caliper Gauge

GM-20

GM-9GM-11

Maximum measuring depth 100mmGraduation 0.1mm
Measuring Range 0〜30mm

Maximum measuring depth 125mm
Graduation 0.1mm
Measuring Range 0〜50mm

Maximum measuring depth 125mm
Graduation 0.1mm
Measuring Range 0〜80mm

GM-21

GM-22

Maximum measuring depth 220mm
Graduation 0.1mm
Measuring Range 0〜90mm

Maximum measuring depth 250mm
Graduation 0.1mm
Measuring Range 0〜90mm

Dimensions

24H2H4

H3 H1

Dimension Table

90Measuring Range

Maximum Measuring Depthunit : mm

Specifications

H1221765
20H21261170
25H322171065

H4126111570
unit : mmModelGraduation(mm)

Measuring Range(mm)Indication Error(mm)Maximum Measuring
Depth (mm)Measuring Force(N)Weight(g)GM-90.1

0〜30±0.1

100

5 or less460

GM-110.1

0〜50±0.1

125

5 or less

480

GM-20

0.1

0〜80±0.1

125

5 or less

500

GM-21

0.1

0〜90±0.1

220

5 or less660

GM-220.1

0〜90±0.1

250

5 or less

720

Usage Example

Internal Caliper Gauge

Internal dimension of deep position
can be easily measured. (maximummeasuring depth 180mm=IM-2)

External Caliper Gauge

Thickness of long distanceposition of board shape
workpiece can be measured.
(maximum measuring depth
400mm=GM-3)

40Model
GM-9
GM-11
GM-20
GM-21
GM-22

Groove diameter of groove for"O" ring can be easily
measured. (IM-808,IM-880 etc)

Measurement evading from screw,
nuts etc. can be made.

Thickness measurement innarrow area. (GM-9,GM-11)

It can measure evading
obstacles in front of
measuring point.
(GM-8,GMD-8J)

Caliper Gauge

External Digital Caliper Gauge• External dimension measuring instrument of which digital gauge is built into frame. This can treat statistics data and print out it by connecting itto the optional exclusive printer SD-765P (Please refer to page 30).
• It is possible to equip print out switch (Option).

Print out switch(Option)Print out switch(Option)

GMD-1J

GMD-2J

Maximum measuring depth 125mm
Graduation 0.1mm
Measuring Range 0〜90mm

Maximum measuring depth 250mm
Graduation 0.1mm
Measuring Range 0〜90mm

Dimensions

24

H2
H4

angering R90

Dimension TableMeasu

H3 H1

Maximum Measuring Depth

Print out switch(Option)

GMD-1J/GMD-2J

GMD-8J
Maximum measuring depth 130mm
Graduation 0.1mm
Measuring Range 0〜80mm

Dimensions

unit : mm

Model
GMD-1J
GMD-2J

H12550H24060

H32550

H44060unit : mm

R180801302490

Printer (Option)

Mini Printer for
Digital Caliper Gauges SD-763P
Connect cord ZE-018

GMD-8J

Specifications
Model

Graduation(mm)

GMD-1J0.1

0〜90±0.1

GMD-2J0.1

0〜90±0.1

GMD-8J0.1

0〜80±0.1

unit : mm

Measuring Range Indication Error* Maximum Measuring(mm)(mm)
Depth (mm)Measuring Force(N)Weight(g)125

5 or less

560

250

5 or less

830

130

5 or less

580*The quantizing error function is not included.

41

Caliper Gauge

Arm Slide Type Caliper Gauge• Stable and accurate measuring dimension (comparative measurement) is possible for internal and external dimension, as this can well stick toworkpiece with measurement method by sliding movable arm.
• Boxy type, easily to hold, lightweight and solid, this is suitable to inspect large volume at work site.
• This can be used for various objectives to measure internal gears, internal diameter female screw, plain gear, spline shaft of special key, overpin diameter of separation shaft and pitch gear thickness.
• Contact point is separately produced on demand such as ball type, flat type, knife edge type. Please advise dimension and shape.
• As Digital indicator is an option, please select it according to an objective. Because dial indicator can be installed.
• This can print out data by connected to Digital mini printer SD-763P (option).

Movable Arm
Contact Point

10(Maximum Stroke）

124
150

FM-20

Contact point (Option)
20Indicator (Option)

Fixing Arm

3043Dimensions

Internal Measurement

unit : mm

Indicator (Option)

FM-25

Movable Arm

Contact Point (Option)

Fixing Arm

3042

Dimensions

Contact Point

External Measurement10(Maximum Stroke）

111
150

Groove internal diameter iscomparatively measured byusing Digital indicator with
0.001mm resolution

20Example

unit : mm

Specifications
ModelApplication

FM-20

Internal
External

FM-25

Measuring Range(mm)20〜130

Arm Length(mm)
30

0〜100

30

Measuring Force(N)7〜9Fitting Holes(mm)φ3.5Weight(g)
380

7〜9

φ3.5

380

Contact point and digital indicator are not included.

42