Accuracy: ?2″.
To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
Can be combined to any angle with interval 6 seconds after combination (6″, 12″, 18″, … , 360?).

Insize 7341-7S, PIN GAGE HANDLE (with 1pc handle and 6 pairs of collecting bushes), .341-.406", 6928640370625
3M 55700, Stikit Film Disc w/Tab 375L, 6 in x NH P150, 7100106618, 250 per case
3M 26110, PPS Series 2.0 Adapter, Type S24, 1/4 Female, R-Angle 18
Thread NPS, Side Cup Mount, 7100135940 