Telescoping Gage Set

Description:
Starrett telescoping gages are used for determining the true size of holes, slots, and recesses up to 6" (150 mm). 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slightly "rocked" in the hole being measured to ensure that the tool is on the proper diameter before it is locked and withdrawn.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. Each of these gages feature a handle, one rigid contact arm and one spring-tensioned telescoping contact arm. Packed one in a box ? individually or sets.