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?).

Dynabrade 15101 Tension Arm (for Mini Dynafile II)
Dynabrade 40378 Rubber Drive Wheel, Mini Dynafile II
Insize 7231, SCRIBER, 6928640320071
Standard Abrasives 709653, A/O Full Taper Cartridge Roll, 1/2 in x 1-1/2 in x 1/8 in 60, 7100085876
3M 45190, Disc Pad Hub, 4-1/2 in 5/8-11 Internal, 7000045659 