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MADE IN USA
Depth Gages
Dial, Series 640, 640M,
643, 644 & 644M

FEATURED BRAND
Features:
  • Direct reading tools, referencing from their hardened and ground bases.
  • All bases are 2-1/2 in. (64mm) long.
  • Quicker and more convenient to use than any other type of depth age within their ranges and accuracy.

No. 640
The contact is slightly up into the base at rest. In action, the inspector sets the contact at zero, which is usually at the bottom of the base. Then the top button is pushed down to contact the work and the measurement is taken. Gages feature a Starrett No. 25-431 AGD dial indicator
No. 640R
The gages are the same as the No. 640 except they have reverse movement and can easily be used with one hand. SImply set on zero and apply the contact to the work and read the measurement.
No. 643
This gage has a knife-edge base and a needle point contact which has been hardened and ground. The knife-edge base has a cut-out so the conical point can be precisely positioned for close work. Point is 1/2 in. (12.7mm) long with a 40° included angle.
No. 644
These gages are for longer ranges, and are accurate and simple to use. Put the contact on the work to be measured and push the gage head down until the base stops at the reference point and take reading. Gages are furnished with three rounded-end contact points to cover the range. Flat end contact points are available on special order.

Starrett No. Range
(in./mm)
Dial
Reading
(in.)
Base
Length
(in.)
Grad.
(in.)
Catalog No. Price ($)  

643JZ 0-.125 in. 0-25-0 2-1/2 in. .0005 in. 1-855-52714 274.00     ADD TO CART
640JZ 0-1/2 in. 0-50 2-1/2 in. .0005 in. 1-855-52705 291.00     ADD TO CART
640RJZ 0-1/2 in. 0-50 2-1/2 in. .0005 in. 1-855-52709 260.00     ADD TO CART
644JZ 0-3 in. 0-100 2-1/2 in. .001 in. 1-855-52718 299.00     ADD TO CART
644MJZ 0-75 mm 0-100 64 mm .01 mm 1-855-56027 290.00     ADD TO CART

Prices subject to change without notice.
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Starrett Depth Gages and Related Products:
Micrometer Depth Gages (Inch & Metric) & Rods- Series 440 & 445
Micrometer Depth Gages w/Half Base & Rods - Series 443
Micrometer Depth Gages w/Non-Rotating Blades & Rods - Series 449
Digital Micrometer Depth Gages - Series 446
Electronic Digital Depth Gage - Series 763
Steel Rule Depth Gage - Series 237
Protractor & Depth Gages
Dial Depth Gage - Series 450
Dial Depth Gages - Series 640 & 644
Related Products

Precision Measuring Index
Depth Gages Index

JTS Machinery & Supply Co.
7509 Tyler Blvd.  
l Mentor, Ohio 44060 USA
Tel: 440.951.2138  l  Fax: 440.951.6873
Toll Free Tel: 800.321.3566  l  Toll Free Fax: 888.587.0022

Copyright © 2007 by JTS Machinery & Supply Co.
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