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Dial Indicator equivalent models with long travel
aka drop indicator—travel indicator

What kind of travel to use

 

It is common wisdom to not use any indicator which offers more travel than is necessary.

If you only need to measure up to 1/4" then you should stick with a 1" indicator at the most. If you need to measure over 1" then you have a number of options. These long range indicators have their own set of problems, are less accurate over their entire range, are more easily damaged, and beside being more costly, they will also cost more to have repaired—if you can find someone who can do this kind of work.

Do not confuse amount of travel with measuring depth. If you just need to go further into a hole or groove, use a longer contact point on your 1" indicator. Contact point extensions are available on page 133.

Whenever possible, hold the indicator by its stem. This will be the most rigid set-up. Also remember that the indicator reads accurately only when the stem is perpendicular to the measured surface. If you are off even by a couple of degrees you will start to notice reading errors. To convince yourself, just try it.

Most manufacturers instruct us to use these only in an upright position. Held horizontally or upside-down the spindle and the hand are likely to refuse to return to zero. It is simply a matter of gravity.

This page is designed to help you find equivalents to long range (more than 1" travel) dial indicators which you might own or want to replace. It will show the new models when others have become obsolete. It can also help you find better quality equivalents or—vice versa—cheaper alternatives.

We've taken the major parameters into account: the range, the graduations, the dial diameter and the stem diameter. We have included both inch and metric models for some of the most popular manufacturers currently available. Some indicators ship with a lug back, others have flat backs and lug backs need to be ordered separately. There will of course be some variation from one manufacturer to another. For a detailed comparison of manufacturers and brand names, refer to page 14.

Where they're made:

  • B.C. Ames: USA (85% made in USA)
  • Brown & Sharpe: Germany (made by Kafer)
  • Kafer: Germany
  • Mitutoyo: Japan
  • Starrett: USA
  • Teclock: Japan

This page is new and information is currently being added on an "as needed" basis. If you have questions about models not listed, please send us an e-mail.

By clicking on a (brown) linked model number, you will be taken to a page which has further details on that particular model.


 

Inch Group 2 (approx. 2.25" diameter dial)

Graduations

Range

Back

Stem

Dial*

Thread

Mfg

Model

Notes

.001"

2"

?

3/8"

0-50-0

4-48

BC Ames

2812

.001"

2"

?

3/8"

0-100

4-48

BC Ames

2822

.001"

2"

lug

3/8"

0-100

4-48

Kafer

Z 2/50 TA

.001"

2"

lug

8 mm

0-100

M2.5

Kafer

Z0 2/50 TA

.001"

2"

lug

3/8"

0-100

4-48

Mitutoyo

2424S-19

.001"

2"

flat

3/8"

0-100

4-48

Mitutoyo

2424SB-19

.001"

2"

lug

3/8"

0-100

4-48

Teclock

AI-951

.001"

2"

lug

3/8"

0-100

4-48

Teclock

AI-951B

black dial

.0005"

2"

lug

3/8"

0-50

4-48

Kafer

Z 3/50 TA

.001"

4"

lug

3/8"

0-100

4-48

Kafer

Z 2/100 TA

Inch Group 3 (approx. 3" diameter dial)

Graduations

Range

Back

Stem

Dial*

Thread

Mfg

Model

Notes

.001"

2"

lug

3/8"

0-100

4-48

Starrett

655-2041J

.001"

2"

lug

3/8"

0-100

4-48

Brown & Sharpe

MW222A

.001"

2"

lug

3/8"

0-100

4-48

Brown & Sharpe

MB222A

black dial

.001"

2"

lug

3/8"

±0-100

4-48

Mitutoyo

3424S-19

.001"

2"

flat

3/8"

±0-100

4-48

Mitutoyo

3424SB-19

.001"

3"

lug

3/8"

0-100

4-48

Starrett

655-3041J

.001"

3"

lug

3/8"

±0-100

4-48

Mitutoyo

3426S-19

.001"

3"

flat

3/8"

±0-100

4-48

Mitutoyo

3426SB-19

.001"

4"

lug

3/8"

0-100

4-48

Kafer

GZ 80/100 TA

.001"

4"

lug

3/8"

0-100

4-48

Starrett

655-4041J

.001"

4"

lug

3/8"

±0-100

4-48

Mitutoyo

3428S-19

.001"

4"

flat

3/8"

±0-100

4-48

Mitutoyo

3428SB-19

.001"

5"

lug

3/8"

0-100

4-48

Starrett

655-5041J

Metric Group 3 (approx. 3" diameter dial)

0.01 mm

50 mm

lug

3/8"

±0-100

4-48

Mitutoyo

3058S-11

0.01 mm

50 mm

flat

3/8"

±0-100

4-48

Mitutoyo

3058SB-11

0.01 mm

50 mm

lug

8 mm

±0-100

M2.5

Mitutoyo

3058S-19

0.01 mm

50 mm

flat

8 mm

±0-100

M2.5

Mitutoyo

3058SB-19

0.01 mm

80 mm

lug

8 mm

±0-100

M2.5

Mitutoyo

3060S-19

0.01 mm

80 mm

flat

8 mm

±0-100

M2.5

Mitutoyo

3060SB-19

0.01 mm

100 mm

lug

8 mm

±0-100

M2.5

Mitutoyo

3062S-19

0.01 mm

100 mm

flat

8 mm

±0-100

M2.5

Mitutoyo

3062SB-19

Notes

 

(*) The ± symbol shows that the dial runs in both directions (clockwise and counter-clockwise) from zero to 100.

Black: the dial is black and the dial hand is bright orange.

 



 

 

From our reference shelf:

The Companion Reference Book on Dial and Test Indicators … page 178
BesTest and TesaTast Indicator Repair Manual … page 177
Starrett 711 Last Word Indicator Repair Manual … page 199
Interapid Indicator Repair Manual …
page 208
Compac Test Indicator Repair Manual ... page 194
 

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This page's most recent revision: 2 NOVEMBER 2016
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Original photographs and content copyright 2016 by René Urs Meyer

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