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 ISR-S1000B-STAND, TEST STAND FOR ISR-S1000B, 6928640387111
Air Turbine Tools 2545SVR - 1/4" Angle Hand Tool Series (Long Version, Rear Exhaust), 40,000RPM, 35540
Dynabrade 01185 Vane Set (4pk)
3M 91004, Drywall Sanding Sponge CP-042-4PK, Single Angle, 4-7/8 in x 2-7/8 in x 1 in, Fine, 7100111452, 4/pack 