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Dorsey
High Amplification Dial Indicators - Made in USA

Dorsey Metrology International, located in upstate New York, offers high grade dial indicators with superb accuracy and graduations as fine as .00002"

This is accomplished with a lever system that bypasses conventional racks and gears. Similar methods are used in the Mahr comparators made in Germany.

  • Available in single or multiple revolution styles, in three dial diameters
  • inch or metric models
  • User adjustable force from 2 to 5 oz
  • A zero adjustment knob eliminates the need to rotate the bezel
  • Optional lifting levers or cables can be installed

Notes About Model Numbers

 

If you study the Dorsey model numbers long enough you will discover there is a method to the madness. Unfortunately they chose to include the letter "I" which can easily be confused with the number "1". We have attempted to use a font that should make the difference clear. Please pay careful attention to this detail.

DorseyGroup4

Model 4I4-002 (left) and metric model 4I01-0005mm (right).


In compliance with AGD conventions, the metric models have yellow dials. All models have 3/8" diameter stems but 8 mm stems are available on request (see below). Indicators come supplied with flat backs but you can request different backs at time of ordering (fees apply).

Group 4 - extra large dial - 3-5/8" diameter

Model

Graduation

Total Travel

Dial configuration

Back

Accuracy

Repeatability

Price 2017

4I4-002

.00002"

.004"

±.002"

flat

±.00002"

±.000010"

$525.00

4I9-005

.00005"

.009"

±.0045"

flat

±.00005"

±.000010"

$425.00

4I4-005

.00005"

.004"

±.002"

flat

±.00005"

±.000010"

$425.00

4I9-01

.0001"

.009"

±.0045"

flat

±.0001"

±.000020"

$395.00

4I01-0005mm

0.0005 mm

0.1 mm

±0.05 mm

flat

±0.0005 mm

±0.0001 mm

$540.00

4I01-001mm

0.001 mm

0.1 mm

±0.05 mm

flat

±0.001 mm

±0.0002 mm

$445.00

Optional ISO 17025 certification (available only at time of purchase) click here to order

Optional 8 mm diameter stem installed (available only at time of purchase) click here to order

$45.00

Optional back with lug on center (available only at time of purchase) click here to order

$31.00

Notes About Repair Service

 

It is possible to replace the entire movement thus assuring top accuracy but this is easier said than done. We prefer to leave this to the manufacturer who has an excellent repair department. Should you need repairs on any of these Dorsey indicators, please call 1-845-454-3111 for instructions and information.



 

 

from our bookshelf

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
Mitutoyo Test Indicator Repair Manual … page 102
 

www.longislandindicator.com

Long Island Indicator Service Inc
14 Sarah Drive — Hauppauge NY 11788 — USA


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This page's most recent revision: 5 MAY 2017
All Rights Reserved

Original photographs and content copyright 2017 by JWGrum

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