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 0131-A120, LIGHT METER, 0.01~19.99FC, 0.1~199.9FC, 1~1999FC, 10~19990FC, 0.1~199.9Lux, 1~1999Lux, 10~19990Lux, 100~199900Lux, 6974029776557
3M 26130, PPS Series 2.0 Adapter, Type S35, 16 mm Female, 1.5 mm
Thread Stretched, 7100135926
3M 45098, Roloc Disc Pad TR, Soft 1-1/2 in 1/4-20 Internal, 7000045277
3M 77579, Cubitron ll Cloth Belt 784F, 36+ YF-weight, 1/2 in x 24 in, Fabri-lok 45 Angle, Single-flex, 7100232690, 200 per case 