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 27711, Cubitron II Roloc Durable Edge Disc 984F, 60+, YF-weight, TR, Maroon, 4914834, 4 in, Die R400BB, 7100006570, 100 per case
3M 87209, Cubitron II Depressed Center Grinding Wheel, T27, 4-1/2 in x 1/4 in x 7/8 in, Single Pack, 7010299049, 10 per case
3M 27720, Cubitron II Roloc Durable Edge Disc 984F, 80+, YF-weight, TSM, Maroon, 1-1/2 in, Die RS150SM, 7000045177, 200 per case 