TIC-MS, Inc.
The Instrumentation Center - Metrology Services 

11692 Lilburn Park Rd. St. Louis, Mo  63146

Phone:    1-314-432-3633

Fax: 1-314-432-3773

 www.ticms.com 

Email: ticms@ticms.com

Ask the Wizard For Guagemakers Tolerances

Cylindrical Gage Classifications

Tolerance Direction:

I.   Unilateral:

Cylindrical Plug or Discs: 

  • "No Go" tolerance is applied to "Minus" side.

  • "Go" tolerance is applied to "Plus" side.

Cylindrical Ring Gages:

  • "No Go" tolerance is applied to "Plus" side.

  • "Go" tolerance is applied to "Minus" side.

II.   Bilateral:

Also referred to as "Split"   tolerance, or "Master" .  Tolerance is divided 50% Plus side, 50% Minus side.

 

Above

 

To & Include

 

Class

XXX

Class

XX

Class

X

Class

Y

Class

Z
0.01"

.254mm

 .825"

20.95mm

 .00001

.25µm

.00002

0.5µm

.00004

1.0µm

 .00007

1.75µm

 .0001

2.5µm
.825"

20.95mm

 1.51"

38.35mm

 .000015

0.38µm

 .00003

0.75µm

 .00006

1.5µm

 .00009

2.25µm

 .00012

3.0µm
1.51"

38.35mm

 2.51"

63.75mm

 .00002

0.50µm

 .00004

1.0µm

 .00008

2.0µm

 .00012

3.0µm

 .00016

4.0µm
2.51"

63.75mm

 4.51"

114.55mm

 .000025

0.63µm

 .00005

1.25µm

 .0001

2.5µm

 .00015

3.75µm

 .0002

5.0µm
4.51"

114.5mm

 6.51"

165.35mm

 .000033

0.83µm

 .000065

1.625µm

 .00013

3.25µm

 .00019

4.75µm

 .00025

6.25µm
6.51"

165.35mm

 9.01"

228.85mm

 .00004

1.00µm

 .00008

2.0µm

 .00016

4.0µm

 .00024

6.0µm

 .00032

8.0µm
9.01"

228.85mm

 12.01"

305.05mm

 .00005

1.25µm

 .0001

2.5µm

 .0002

5.0µm

 .0003

7.5µm

 .0004

10µm
12.01"

305.05mm

 15.01"

381.25mm

 .000075

1.88µm

 .00015

3.75µm

 .0003

7.5µm

 .00045

11.25µm

 .0006

15µm
15.01"

381.25mm

 18.01"

457.45mm

 .0001

2.50µm

 .0002

5µm

 .0004

10µm

 .0006

15µm

 .0008

20µm
18.01"

457.45mm

 21.01"

533.65mm

 .000125

3.13µm

 .00025

6.25µm

 .0005

12.5µm

 .00075

18.75µm

 .001

25µm