The Starrett® telescoping gage is used for determining the true size of holes, slots and recesses upto 6 in. The ends of both contacts are hardened and ground to a radius to allow proper clearance on the smallest hole the gage will enter. This tool 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slightly "rocked" in the hole being measured to ensure that the tool is on the proper diameter before it is locked and withdrawn.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.
Starrett® Telescoping Gage Set, Series: 229, 1/2 to 2-1/8 in Measuring, 3 Piece, Rigid Handle, Polished Chrome
For determining the true size of holes, slots and recesses
Series | : | 229 |
Finish | : | Polished Chrome |
Measuring Range | : | 1/2 to 2-1/8 in |
Number Of Pieces | : | 3 |
Handle Type | : | Rigid |