Bore Gauge
Bore Gauge is the comparative measuring instrument which measures internal diameter of a hole by comparing with master gauge (micrometer, ringgauge etc.). Center of prove and anvil are guided to diameter part of a hole by guide assembly and displacement of contact point is transferred to dialindicator (Automatic centripetal mechanism ) by right angle change in the ratio of 1 : 1 with cam mechanism.
Measurement accuracy is changed according to graduation (resolution) of used dial indicator. Measuring range are available from minimum φ6mm tomaximum φ450mm according to size of diameter.

Bore Gauge (CD type)

Dimensions

A123
22.511L

φ12φD1

φD2B(Measuring Depth）

φ8Driving Rod Depth 32• Compliance with JIS B 7515A.
• Anvil and Contact point are using the carbide ball.
• The measuring depth can be extend using the extension rod to measure a deep hole.

Edge of Point Carbide
φD4

Interchangeable Rod

11.9

6.4

72.
φ1 W

φD3

18.2

Interchangeable RodWH

Edge of point Carbide
φD49

Edge of point Carbide
φD40φ2W

CD-35、CD-35S

CD-60、CD-60S

unit：mm

CD-150Measuring Range 50~150mm

Dimension Table ： Standard
Model
CD-35
CD-60
CD-150CD-160CD-250CD-400CD-35S

Short size

Measuring Range 18~35mm

A229.4282282282385385

B
100150150150250250

L
11.9
18.2
28.9
28.9
100.9
100.9

H
6.4
9991212Dimension Table ： Short size
Model
CD-35S
CD-60S
CD-150S
CD-160S
CD-250S
CD-400S

A
179.4
182
182
182
285
285

B
50
50
5050
150
150

L
11.9
18.2
28.9
28.9
100.9
100.9

H
3.49991212

φD4
1.5
1.5
2
12.8
212.8
319.8
319.8
unit：ｍｍW
φ12.7
φ2038509090

φD191212121515φD2222222222525

φD3W
φ12.7
φ2038509090

φD191212121515φD2222222222525

φD4
1.5
1.5
212.8
212.8
319.8
319.8
unit：ｍｍ

NumberofWashers

Sub
Anvil

Weight(g)2444772444
7
7––50––75––
50––
75

160
230
250
310
680
775
150
210
230
290
630
720

φD3

Specification
ModelStandard type
Short type

CD-35
CD-60
CD-150CD-160CD-250CD-400CD-35S
CD-60S
CD-150S
CD-160S
CD-250S
CD-400SMeasuring
Effective
Total Range
Probe DepthRange
Measuring
Error
(mm)
Range(mm)
(mm)
(µm)
18-35
100
1.235-60
150
50-150150
100-160150
1.6
160-250250
250-400250
218-35
50
1.2
35-60
50
50-15050
100-16050
1.6
160-250150
250-400
150

Adjacent
Error
(µm)

Repeatability Measuring Guide Support
ForceForce(µm)
4N or less
5N or less
6N or less

10.5
4N or less
5N or less
6N or lessNumber of Anvils

Incream 9pcs./2mm
Incream 6pcs./5mm
Incream 11pcs./5mm
10N or less
Incream 13pcs./5mm
Incream 6pcs./15mm
15N or less
Incream 5pcs./15mm
Incream 9pcs./2mm
6N or less
Incream 6pcs./5mm
Incream 11pcs./5mm
10N or less
Incream 13pcs./5mm
Incream 6pcs./15mm
15N or less
Incream 5pcs./15mm
6N or less43

Bore Gauge & Micro-hole Test

Bore Gauge (CD type) for shallow hole

Ｂ (Measuring Depth)

23

φ22100Ｃ

φ92.5

Fitting Holeφ8Dimensions

CD-35F

Measuring Range 15~35mm

2.5mm

ＤＦ

CD-35F

φＥ

CD-60F

Dimension Table

Model
CD-35F
CD-60F
CD-150F
CD-35FS
CD-60FS
CD-150FS

Internal measurement is possibleat the position from shallow holebottom by 2.5mm.

CD-150F

A
275.5
275.5
275.5
175.5
175.5
175.5

unit：mm
B
150150150505050C
10.6
182210.6
1822D
15.7
35.7
50.7
15.7
35.7
50.7

E
5555
55F
1014.322.7
1014.322.7
unit：mm

Specification
Measuring Range
（mm）
15〜35

Effective Measuring
Range（mm）
1.2

Total Range Error（µm）
4

Adjacent Error（µm）
1

Repeatability（µm）

CD-60F

35〜60

1.2

4

1CD-150F

50〜1501.2

4

1CD-35FS

15〜35

1.2

4CD-60FS

35〜60

1.2

CD-150FS50〜1501.2

Model
CD-35FAnvil（pcs.）
11Weight（g）
180

16200

1112101111140411616041111170

1

Bore Gauge (CN type) for small hole• These are bore gauges for small holes of which internal diameter is 18.5mm and high accuracy measuring is possible as well as standard typebore gauges.

Fitting Holeφ8A

Dimensions

φ15CN-10

Measuring Range 10~18.5mm

B (Measuring Depth)

Measuring Range 6~10mm

CN-18φDC

Dimension Table
unit：mm

Model
CN-10
CN-18A8080

B49100C5.48.5D46unit：mm

Specification
CN-10

Measuring Range Effective Measuring Total Range Error（mm）
Range（mm）（µm）
6〜100.5
5CN-1810〜18.5

Model440.6

5Adjacent Error（µm）
2Repeatability（µm）
2Weight（g）
70

2280

Bore Gauge & Micro-hole Test

Parts
Interchangeable Rods (Anvils), Washers and Extension Rods
Interchangeable rods (anvils)

Extension
rods

Model

CN-10
CN-18

No.1

No.2

No.3

No.4

No.5

No.6

No.7

No.8

No.9

NML

66.5

7

7.5

8

8.5

99.5

10

Code No.

ZJ-300ZJ-301

ZJ-302

ZJ-303

ZJ-304ZJ-305

ZJ-306

ZJ-307

ZJ-308NML

101112131415161718

Code No.

ZJ-310

ZJ-311

ZJ-312

ZJ-313

ZJ-314

ZJ-315

ZJ-316

ZJ-317

ZJ-318

CD-35

NML

1820222426283032

34

CD-35S

Code No.

ZJ-350ZJ-351

ZJ-352

ZJ-353

ZJ-354

ZJ-355

ZJ-356

ZJ-357

ZJ-358

Washers
No.10

No.11

No.13 0.5mm 1mm

NML

3540455055

60

Code No.

ZJ-360ZJ-361

ZJ-362

ZJ-363

ZJ-364

ZJ-365NML

50556065

7075

8085

9095100

CD-150Code No.

ZJ-360ZJ-361

ZJ-362

ZJ-363

ZJ-364

ZJ-365

ZJ-366

ZJ-367

ZJ-368

ZJ-369ZJ-370

NML

50100

105

110115120

125130135

140

145

150

Code No.

ZJ-379ZJ-360ZJ-361

ZJ-362

ZJ-363

ZJ-364

ZJ-365

ZJ-366

ZJ-367

ZJ-368

ZJ-369ZJ-370

NML

100105110

115

120125

130

135

140

145

150

155

160

CD-160S

Code No.

ZJ-360ZJ-361

ZJ-362

ZJ-363

ZJ-364

ZJ-365

ZJ-366

ZJ-367

ZJ-368

ZJ-369ZJ-370ZJ-371

ZJ-372

NML

160

175

190

205

220235

Code No.

ZJ-37３

ZJ-374

ZJ-375

ZJ-376

ZJ-377

ZJ-378

NML250

265

280

295

310

CD-400Code No.

ZJ-37３

ZJ-374

ZJ-375

ZJ-376

ZJ-377CD-400S

CD-35F

NML75

325340355370

385

Code No.

ZJ-380ZJ-37３

ZJ-374

ZJ-375

ZJ-376

ZJ-377

NML

1516

1718

19

2021

22

23

2425

ZJ-319

ZJ-320

ZJ-321

ZJ-322

ZJ-323

ZJ-324

ZJ-325

ZJ-326

ZJ-327

ZJ-328

ZJ-329

（25）

26

NML
Code No.

10mm

ZJ-341 （ZJ-319） ZJ-320

27282930

3132333435

ZJ-321

ZJ-322

ZJ-323

ZJ-324

ZJ-325

ZJ-326

ZJ-327

ZJ-328

ZJ-329CD-60F

NML

354045505560

CD-60FS

Code No.

ZJ-330

ZJ-331

ZJ-332

ZJ-333

ZJ-334

ZJ-335NML

50556065707580859095

100

CD-150F

Code No.

ZJ-330

ZJ-331

ZJ-332

ZJ-333

ZJ-334

ZJ-335

ZJ-336

ZJ-337

ZJ-338

ZJ-339ZJ-340

（100）

105

110

115

120

125

130

135

140145150

ZJ-342 （ZJ-330） ZJ-331

ZJ-332

ZJ-333

ZJ-334

ZJ-335

ZJ-336

ZJ-337

ZJ-338

ZJ-339ZJ-340CD-150FS

NML
Code No.

50

Extension Sleeves
Length (mm)CD-35
CD-60〜
CD-35F〜CD-150F
CD-160CD-250〜CD-400

125

ZJ-400ZJ-403

ZJ-408250

ZJ-401ZJ-404

ZJ-409500

ZJ-402

ZJ-405

ZJ-410750−ZJ-406

ZJ-4111000−ZJ-407

ZJ-412

Extension sleeve dia. (mm)φ8.7

φ12Spanner

ZZ-018

φ15ZZ-019

Dial Gauge Protection Cover(ZY-094)

As error may occur due to deflection,
only 1 extension rod should be adopted.

ZJ-344

ZJ-344 ZJ-345 ZJ-346 ZJ-347①②⑧③④⑥⑦⑧⑤extension sleeve
Dial indicator protection cover (ZY-094).
Protection cover for bore gauge.
It can not be used for CC type.

Model
CN-10
CN-18
CN-35F
CN-60F
CN-150Ｆ
CD-35
CD-60
CD-150CD-160CD-250CD-400⑥⑦①Dial Clamp②Dial Holder③Grip④Sleeve⑤Head⑥Contact Point(Movable Side)⑦Guide⑧Anvil

WasherExtension Rods andWasher Set
Code No.
ZJ-918
ZJ-919
ZJ-920
ZJ-921
ZJ-922
ZJ-923
ZJ-924
ZJ-925
ZJ-926
ZJ-927
ZJ-9286mm

Parts Names

Can not be used for CN-10, 18, 35F, 60F, 150F.
In case that deep holes aremeasured which can not bemeasured with standard
bore gauges, measuring
depth is to be extended byextension rod outer cylinder.

5mmZJ-388 ZJ-389 ZJ-390 ZJ-391 ZJ-392 ZJ-393 ZJ-394

Code No.

CD-35FS

4mmZJ-384 ZJ-385 ZJ-386 ZJ-387

CD-160CD-250S3mm

ZJ-382 ZJ-383

CD-60S

CD-2502mm

ZJ-343

CD-60

CD-150S

No.12

Anvil

Extension Rods

Supporting Nut(Anvil Nut)

Can also be used toCN type of old poducts.

45

Micro-Hole test
This is designed for measuring diameter of small holes exclusively and can measure diameters from minimum φ1.7mm to maximum φ10mm.
When the edge of probe is inserted to a small hole, the edge is closed to inside and presses inner driving rod upward. The principle is thatmovement is transferred to the extension rod and instructs to dial indicator. Swing width of dial graduation is read as well as bore gauge. It ismarked characteristic that stability accuracy indicating performance is high as 2μm.

Micro-Hole test

• It can comply with measuring internal diameter from minimum φ1.7mm to maximum φ10mm.
• It has realized stability accuracy 2μm, even though it is applied for small internal diameter which is difficult to measure.
• It realizes smooth operation with hard chrome plating. It can be naturally inserted to small internal diameter and obtain stable indication value.

[Full Choice] Micro-Hole Test

Series to select only the measuring range is needed.

Dimensions

Model

20

MT-3N

76

φ16MT-4N

50

MT-10N

Measuring Range 6~10mm

MT-6N

C

Specification
Model

Measuring Range
Number of(mm)
Probe

MT-3N

1.7〜3.24

MT-4N

2.7〜4.3

4MT-6N

3.8〜6.2

4

MT-10N

6.0〜10.06A

B(Depth of measurement)

M6×Ｐ0.75
M6×Ｐ0.75

MT-10N

unit：mm

Ordering Method
MT-3N 1.7
MT-3N 2.1
MT-3N 2.3
MT-3N 2.7
MT-4N 2.7
MT-4N 3.1
MT-4N 3.4
MT-4N 3.8
MT-6N 3.8
MT-6N 4.2
MT-6N 4.7
MT-6N 5.3
MT-10N 6.0
MT-10N 6.6
MT-10N 7.3
MT-10N 8.0
MT-10N 8.5
MT-10N 9.2

Measuring Range (mm)012013014015015016017018018021022023024025
026027028029

1.70〜2.10
2.10〜2.40
2.30〜2.70
2.70〜3.20
2.70〜3.20
3.10〜3.50
3.40〜3.80
3.80〜4.30
3.80〜4.30
4.20〜5.00
4.70〜5.50
5.30〜6.20
6.00〜6.80
6.60〜7.50
7.30〜8.10
8.00〜8.80
8.50〜9.40
9.20〜10.00

Probe Dimensions (mm)
C
B
A

25.3

170.9

30.6

22

1.2

30.6

22

1.2

30.6
30.6

22
22

2.0

47.3

40

47.3

40

ProbeDriving Rod

1.7〜2.1
2.1〜2.4
2.3〜2.7
2.7〜3.2
2.7〜3.2
3.1〜3.5
3.4〜3.8
3.8〜4.3
3.8〜4.3
4.2〜5.0
4.7〜5.5
5.3〜6.2
6.0〜6.8
6.6〜7.5
7.3〜8.1
8.0〜8.8
8.5〜9.4
9.2〜10.0

012
013
014
015015
016
017
018
018
021
022023024025026027028029

112222222333333333Product configuration=Probe+Diving rod + Holder + Extension rods + Spanner (Dialgauge options)

ProbeNo.

Measuring Range (mm)

Accessories

Driving Rod1

Driving Rod2

2.02.0Spanner

Indication Error(μm)

1182100

1182100

1182100

1182100

Driving Rod Extension Rods

Driving Rod3

Repeatability
Weight (g)
(μm)

50

Technical Data• Dial indicator can be installed to bore gauges and Micro-hole Test. It is selectable for easier reading in compliance with objective and dimension
range.
Measuring purpose
Graduation 0.001mm
Applicable Models
TM-1201f（Measuring Range 1mm）
TM-1202f（Measuring Range 2mm）

Measuring purpose
Graduation 0.001mm
Continuous Dial
Applicable Models
TM-1251f（Measuring Range 1mm）

Measuring purpose
Graduation 0.01mm
Applicable Models
TM-105（Measuring Range 5mm）

Measuring purpose
Graduation 0.01mm
One Revolution Dial Indicator
Applicable Models
TM-102f（Measuring Range 1mm）

Measuring purpose
Graduation 0.001mm
One Revolution Dial Indicator
Applicable Models
TM-1200f（Measuring Range 0.16mm）
Measuring purpose
Small Dial Indicators
Applicable Models
TM-36f0.005mm（Graduation
Measuring Range 3.5mm ）TM-37C

0.01mm（Graduation
Measuring Range 3.5mm ）As to dial indicator installed to bore gauge, dial indicator with flat back is recommended. Lug back is standard for ordinary dialindicators but it will be with flat back by adding suffix "f" to the end of model name. TM-105 and TM-37C dial indicator is
supplied with Flat back as standard.

46