GAUGESTEEL RING GAUGEPDIMaster ring gauge for internal diameter measurement. A wide range of sizes
are in stock while custom size ring gauge is also available upon request.

HOW TO MOVIESUB-ZERO（Cryogenic hardened）TREATMENT
STABILIZATION TREATMENTLAPPED FINISH

Carbide for durable and long life▶

Free from rust and corrosion▶

Carbide Ring Gauge

Ceramic Ring Gauge

P71

P71

Non-slip and easy to handle▶

For Serial No. Management▶

Ring Gauge with Protective Cover

Laser Marking

P72

P120
Rust prevention▶
Zerust Film for SteelP380

BLOCK
GAUGE

PIN
GAUGE● DIMENSIONS
120,1$/6,=(PIN
VISE$&78$/6,=(PINGAUGEACCESSORIES

PLUG
GAUGE

LIMIT
GAUGE

0($685(0(1732,17

WELDING
GAUGE

OTHER
GAUGES

1 to 30
Over 30 to 50

Out ofDiameter
Step
Tolerance Hardness
Roundness Inequality
（μm）
（HV）
（mm） （μm）（μm）

0.1 step

0.5

1.0

± 1.00.8

1.6

± 1.5

Over 50 to 60
Over 60 to 80

0.5 step

1.0

2.0

± 2.0

5.0 step

2.0

4.0

19/03/08 09:01:58

450.4'10g

0.310gOver 10 to 153810

Over 15 to 204512

Over 20 to 255314

Over 25 to 32

63

16

Over 32 to 40

71

18400gOver 40 to 50

85

20600〜700g

Over 50 to 60

100

Over 60 to 70

112

Over 70 to 80

125

Over 80 to 90

140

1.7〜1.9kg

Over 90 to 100

160

2.3〜2.6kg

Over 100 to 110

180Over 110 to 120

190

Over 120 to 130

200

Over 130 to 140

210Over 140 to 160

230

Over 160 to 180

260

Over 180 to 200

280

772

± 5.0

Step（mm）
・1.1・1.2・1.3・1.4・1.5・1.6・1.7・1.8・1.9・2.0・
0.1 step 1.0
2.1・2.2・2.3・2.4・2.5・2.6・2.7............50.0
50.5・51.0・51.5・52.0・52.5・53.0・53.5・0.5 step 54.0・54.5・55.0・55.5・56.0・56.5・57.0・57.5............100.0
105.0・110.0・115.0・120.0・125.0・130.0・
5.0 step 135.0・140.0・145.0・150.0・155.0・160.0・
165.0............200.0

0.8

Weight653〈Standard Size List〉

Over 100 to 200

22Thickness
B（mm）

Chamfering for Chamfering foroutside diameter inside diameter Remarks
C（mm）※F（mm）※

8●Parallelism: Within 0.015mm

Over 50 to 100※ Reference value
OutsideDiameterｄ（mm）

32●Squareness: 0.05 /φ100

1 to 50

1 to 2.5&r

Over    5 to 10●Surface roughness: Within Ra0.1µm

Size（mm）

SizeD（mm）

Over 2.5 to 5

Over 80 to 100
Over 100 to 200%〜TAPERGAUGE

Size（mm）)rSize List

SPECIFICATIONSTHICKNESS
GAUGE/$33('),1,6+USE●As a master ring gauge for "0" adjustment of measuring instruments
such as bore gauge, inside micrometer, dial caliper, etc.
MATERIAL●Alloy tool steel
FEATURES●Provided with inspection report

GRING
GAUGE

.185/('50g

0.5

80g

1.2

100g
200g

1.5

1.0

300g

0.9〜1.1kg
Knurled

2.0
24

1.4〜1.6kg

1.530

3.7〜4.1kg
4.7〜5.1kg

3538

1.1〜1.3kg

5.0〜5.5kg2.4

5.7〜6.3kg
6.6〜8.2kg

40

2.08.6〜 10kg
9.4〜 11kg

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MTO product

PDI

Up to 520mm manufactuable. Custom size ring gauge is also available upon request.

SUB-ZERO（Cryogenic hardened）TREATMENT
STABILIZATION TREATMENTHOW TO MOVIEGAUGESTEEL RING GAUGE LARGE SIZE

● DIMENSIONS■Provided with aluminum case

MATERIAL●Alloy tool steel
FEATURES●Provided with inspection report
SPECIFICATIONS
Step（mm）

Over 200 to 230

5.0 step

Over 230 to 300

Over 300 to 400

Out of Roundness（μm）

Tolerance（μm）

Hardness
（HV）

BLOCK
GAUGE

653

PIN
GAUGE

± 7.05.010.0 stepOver 400 to 500

Diameter Inequality（μm）

10.0± 8.0〜Size（mm）

772

± 9.0

Over 500 to 520

PIN
VISE

± 10.0●Surface roughness: Within Ra0.2µm

PIN
GAUGE
ACCESSORIES●Squareness: 0.1/φ450●Parallelism: Within 0.025mm

Size List※ Reference value
Size
D（mm）

Over 200 to 230

Outside Diameter（mm）
ｄｄ2

310

250〜270

Over 230 to 260

340

Over 290 to 320

400340〜360

480

420〜450

Over 260 to 290

370

Over 320 to 360

440

Over 400 to 450

540

Over 500 to 520

660

Over 360 to 400
Over 450 to 500

600

Thickness
（mm）
B
B2

280〜300
310〜330510〜550560〜600

Chamfering foroutside diameter
C（mm）※

Remarks

9〜10

2.0

2.5

NOT Knurled

25

Order No.

Size
（mm）

436000360.0421500215.0438000380.0422500423000424000425000426000427000428000429000

225.0
230.0
240.0
250.0
260.0
270.0
280.0
290.0

300.0

432000320.0431000433000434000435000

310.0
330.0
340.0
350.0

PLUG
GAUGE

437000439000440000441000442000443000444000445000446000447000448000449000450000451000452000

370.0
390.0

LIMIT
GAUGETHICKNESS
GAUGE

TAPER
GAUGE

WELDING
GAUGE

OTHER
GAUGES

400.0
410.0
420.0
430.0
440.0
450.0
460.0
470.0
480.0
490.0
500.0
510.0
520.0

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430000

15〜18

27〜33

205.0

220.0

14〜16

23〜29

Size
（mm）

42200012〜1419〜24

Order No.

210.0

RING
GAUGE

11〜13420500
421000Weight（kg）

11〜142550

Chamfering forinside diameter
※F
（mm）

2045

380〜410460〜500h（mm）

GAUGESTEEL RING GAUGE SETPDIMTO product

Ring gauge set consist of frequently-used sizes

HOW TO MOVIESUB-ZERO（Cryogenic hardened）TREATMENT
STABILIZATION TREATMENTLAPPED FINISH●BLOCK
GAUGE

PIN
GAUGE

PIN
VISE

Rust prevention▶
Zerust Film for SteelP380

For detailed accuracy and specification, please refer toPage 68 - STEEL RING GAUGE

Order No.

400001Model No.

RG-1S

400002

RG-2S

400004RG-4S

400003400005400006400007RG-3S

Nominal Size

1.0・1.5・2.0・2.5・3.0・4.0・5.0・6.0・7.0・8.0・9.0・10.0

1225.0・26.0・27.0・28.0・30.0・32.0・34.0・35.0・36.0・37.0・38.0・40.01211.0・12.0・13.0・14.0・15.0・16.0・17.0・18.0・19.0・20.0・22.0・24.0

52.0・54.0・55.0・56.0・58.0・60.0・65.0

RG-7S

85.0・90.0・95.0・100.0

Weight（Including case）

0.85kg1242.0・44.0・45.0・46.0・47.0・48.0・50.0

RG-5S

RG-6S

Pieces per set

2.45kg5.80kg768.0・70.0・75.0・80.0

5.85kg79.75kg

410.7 kg

46.85kgPINGAUGEACCESSORIES
RING
GAUGE

PLUG
GAUGE

STEEL RING GAUGE WITH MAINTENANCE LINE
Maintenance line series ring gauge now available

PDI

MTO product
HOW TO MOVIERust prevention▶
Zerust Film for SteelLIMITGAUGE

P380

THICKNESSGAUGE

Custom Sizes
Available

TAPER
GAUGE

Please contact usfor inquiry

WELDING
GAUGE

19/03/08 09:02:01

OTHER
GAUGES

MATERIAL●Alloy tool steel
FEATURES●Maintenance line on steel ring gauge allows easy checking for gauge wear-out●When line disappears, wear is more than 1µm●Available for sizes：15～50mm（1mm step）●Provided with inspection report

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PDI

Inner ring made of carbide, highly-durable material

HOW TO MOVIEGAUGECARBIDE RING GAUGE

Rust prevention▶

LAPPED FINISH

Zerust Film for SteelP380● DIMENSIONS
120,1$/6,=($&78$/6,=(.185/('0($685(0(1732,17MATERIAL●Steel with carbide insert
FEATURES●Durable and long life
●The coefficient of thermal expansion is small（1/2 of steel, 5x10−6/K）, so better tolerates temperature changes●Less likely to be damaged due to high hardness●Economical- Frequent periodic calibration not required●Provided with inspection report
SPECIFICATIONS
Size（mm）

Step（mm）

1 to 30

0.5 step

Over 30 to 50

Diameter
Inequality（µm）

Tolerance
（μm）

0.5

1.0±10.8

1.6±1.5

Out ofRoundness（µm）

Hardness
（HV）

1,200

●Surface roughness: Within Ra0.1µm●Squareness: 0.05/φ100●Parallelism: Within 0.015mm/$33('),1,6+

Size List※ Reference value

SizeD（mm）

Diameter ofCarbide partE（mm）

1 to 2.5Outside
Diameterd（mm）

8Over 2.5 to 5

11OverChamfering for
Thickness outside
Diameter
B（mm）
C（mm）※

4220.455 to 10

1632

8Over 10 to 15213810

Over 15 to 20284512

Over 20 to 25335314

Over 25 to 32406316

Over 32 to 40

5071

18

Over 40 to 50

608520Chamfering forinside Diameter
F（mm）※

0.30.8

0.5

1.2
1.5

1.02.0

BLOCK
GAUGE

Sizes available： 1.0 〜 50.0mm（Please contact us with request）

PIN
GAUGE

CERAMIC RING GAUGE

PIN
VISE

PDI

Made of highly-durable material. Less affected bythermal expansion as well as free from rust.

LAPPED FINISH

HOW TO MOVIESPECIFICATIONS
Size（mm）

3 to 30
Over 30 to 50

Step（mm）

0.5 step

Tolerance（μm）

Out ofRoundness（µm）

Diameter
Inequality（µm）

0.5

1.0±10.81.6±1.5PINGAUGE
ACCESSORIES
RING
GAUGE

PLUG
GAUGE

●Surface roughness: Within Ra0.1µm●Squareness: 0.05/φ100

LIMIT
GAUGE

●Parallelism: Within 0.015mm● DIMENSIONS
MATERIAL●Ceramics
FEATURES●Ceramic material is less susceptible to abrasion and aged deterioration
than steel●Free from rust and corrosion, and easy maintenance●Non-magnetic body
●Does not deform with damage, resists scratches and forming burrs●Lightweight and easy handling●Size is laser marked ●Provided with inspection report

Material DataCeramics（Zirconia）

Material

THICKNESSGAUGE

120,1$/6,=($&78$/6,=(TAPERGAUGE

0($685(0(1732,17/$33('),1,6+G ')rSize List
SizeD（mm）※ Reference value
Outside Diameterd（mm）

Thickness
B（mm）

Chamfering foroutside diameter
C（mm）※

0.8

32

8Over 10 to 15

38

10Hardness

HV

1,250

Over 15 to 20

45

12Bending strength

MPa

1,000

Over 20 to 25

53

14

Young's Modulus

GPa

200

Over 25 to 32

63

16

Coefficient of thermal
expansion

10−6/K

7～8

Over 32 to 40

71

18Heat conductivity

W/m･K

3

Over 40 to 50

Sizes available： 3.0 〜 50.0mm（Please contact us with request）

ࢭ࣑ࣛࢵࢡࣜࣥࢢࢤ࣮ࢪ85

20Chamfering forinside diameter※F（mm）

0.51.21.5

1.0

2.07B71

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3 to 10

6Specific Gravity

OTHER
GAUGES&r%

ーList

WELDINGGAUGEGAUGERING GAUGE WITH PROTECTIVE COVER

MTO product

PDI

No-slip and easy to handle, will increase productivity

HOW TO MOVIELAPPED FINISH

Rust prevention▶
Zerust Film for SteelSTEEL RING GAUGE（with protective cover）

CERAMIC RING GAUGE（with protective cover）

CARBIDE RING GAUGE（with protective cover）

MATERIAL●Protective cover: Anodized aluminum●Gauge: Steel / Carbide / Ceramic
FEATURES●A ring gauge embedded in Aluminum Protective Cover●Covered gauge is easier to handle with dirty hands Less susceptible tothermal expansion when holding a gauge by hand●Less susceptible to thermal expansion when holding a gauge by hand
●Protects from chipping when dropped●Provided with inspection report
BLOCK
GAUGE

PIN
GAUGE

P380

SPECIFICATIONS
Size（mm）

Step（mm）

1 to 2（Steel & Carbide only）
Over 2 to 30

1.0 stepOver 30 to 50

Out ofDiameter Tolerance
Roundness Inequality（μm） （μm） （μm）
0.5

1.0±10.8

1.6±1.5●Surface roughness: Within Ra0.1µm

STEEL RING GAUGE OD MODEL

MTO product

PDI

Available from φ 40-400mm. Simple calibration or 0 adjustment of outside measuring instrument.

Rust prevention▶
Zerust Film for Steel

PIN
VISE

P380

PIN
GAUGE
ACCESSORIES
RING
GAUGE

PLUG
GAUGE

LIMIT
GAUGE

THICKNESSGAUGE● DIMENSIONSTAPERGAUGE㻺㻻㻹㻵㻺㻭㻸㻌㻿㻵㼆㻱㻳㻾㻻㼁㻺㻰㻌㻲㻵㻺㻵㻿㻴㻭㻯㼀㼁㻭㻸㻌㻿㻵㼆㻱

WELDINGGAUGE࿧㻹㻱㻭㻿㼁㻾㻱㻹㻱㻺㼀㻌㻼㻻㻵㻺㼀ᐇ㸩㻰 㼐
OTHER
GAUGES㻮19/03/18 10:02:57

SPECIFICATIONSUSE●For quick calibration of micrometer
MATERIAL●Alloy tool steel
FEATURES●Custom sizes are available up to φ400
●Size range: 40〜400mm●Provided with inspection report
SPECIFICATIONS●Hardness: HV653〜772

SizeD
（mm）

OD
tolerance（μm）

Out ofRoundness（μm）

Diameter
Inequality（μm）

40 to 50
Over 50 to 70
Over 70 to 100
Over 100 to 150
Over 150 to 200
Over 200 to 300
Over 300 to 350
Over 350 to 375
Over 375 to 400±31.5

3±52.55Thickness（mm）

2030±105.010Hole
Diameter（mm）

3040508016020025072

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MTO product

USE●For quick calibration of micrometers（0〜25mm）
MATERIAL●Alloy tool steel
FEATURES●OD pitch: 5・10・15・20・25mm Integrated type gauge

GAUGE

SPECIAL SHAPE - MULTIPLE-STEP GAUGE

Custom Designs
Available

Please contact usfor inquiry※Sample image

SPECIAL SHAPE - MULTIPLE-STEP GAUGE / OD MODEL

MTO productCustom Designs
Available

USE●For calibration or 0 adjustment
MATERIAL●Alloy tool steel
FEATURES●Size combination is arranged on request

Please contact usfor inquiryBLOCK
GAUGE

PIN
GAUGE

※Sample image

SPECIAL SHAPE - STEP GAUGE / ID MODELPIN
VISE

MTO product

USE●For 0 adjustment of dial bore gauge
MATERIAL●Alloy tool steel
FEATURES●Size combination is arranged on request

PIN
GAUGE
ACCESSORIES
RING
GAUGE

Custom Sizes
Available

PLUG
GAUGE

Please contact us
for inquiry

LIMIT
GAUGE

THICKNESS
GAUGE

TAPER
GAUGE

※Sample image

WELDINGGAUGESPECIAL SHAPE - CUT OUT

MTO product

MATERIAL●Alloy tool steel
FEATURES●The special shape allows to hold the ring gage with afixture to prevent the gauge from moving

OTHER
GAUGES

Custom Designs
Available

Please contact usfor inquiry

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19/03/18 10:03:01※Sample image