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?).

3M 26106, PPS Series 2.0 Adapter, Type S22, 8 mm Male, 0.75 mm Thread, 7100135958
3M 76374, Hot Melt Adhesive 3748 Q, Off-White, 5/8 in x 8 in, 7000000878, 11 LBS/Case
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
3M 26141, PPS Series 2.0 Adapter, Type S44, 3/8 Female, 19 Thread BSP, 7100158892
3M 26135, PPS Series 2.0 Adapter, Type S40, Trapezoidal Thread, 7100135335
3M 82597, Hot Melt Adhesive 3764 AE, Clear, 0.45 in x 12 in, 7000000885, 11 LBS/Case
3M 26018, PPS Series 2.0 Adapter, Type S11, 3/8 Male, 18 Thread NPS, 7100135942
Insize 0213-A500, INFRARED THERMOMETER, -58?F~716?F/-50?C~380?C, 6940561934700 