TELESCOPING GAGES

For true size of holes, slots, and recesses up to 6" (150mm).

SHOP Telescoping Gages

Starrett telescoping gages are used for determining the true size of holes, slots, and recesses up to 6" (150mm). The ends of both contacts are hardened and ground to a radius to allow proper clearance on the smallest hole the gage will  enter. These tools must be slightly "rocked" in the hole being measured to ensure that the tool is on the proper diameter before it is locked and withdrawn. The final hole size is obtained by measuring over the gage contacts with a micrometer.

229 Telescoping Gages with One Telescoping Arm - 1/2-6"/13-150MM

Features a handle, one rigid contact arm and one spring-tensioned telescoping contact arm

579 Self-Centering Telescoping Gages with Two Telescoping Arms - 5/16-6"/8-150MM
The 579 Telescoping Gage handles are rigidly attached to the contact plungers and are automatically self-centering. Constant spring tension gives uniform contact pressure. Both plungers are easily locked at any desired setting.

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