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 82489 6" Dia. x 100 Grit A/O Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 55204 Vane Set (4pk)
Dynabrade 11518 Rubber Drive Wheel
Insize 6900-A34, GRANITE SURFACE PLATE, 36x48x6, grade A, 6928640359514
3M 14197, Roloc Disc Pad TP, Medium 2 in 1/4-20 Internal, 7000119311
Dynabrade 96248 Repair Collar-1-3/8" Bore
3M 02140, Fibre Disc Backup Pad, TN Quick Change , 4-1/2 in x 5/8-11 Internal, 7000045746
Dynabrade 11005 Dynafile Belt Housing Guard
Dynabrade 52474 Vane Set (4pk)
3M 17093, Versaflo Hood Assembly with Inner Collar and Premium Head Suspension S-655, 7000002347, 1 EA/Case
3M 14215, Roloc Disc Pad TS and TSM, Medium 3 in 1/4-20 Internal, 7000119310 