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 4190-5H32, CERAMIC STANDARD BALLS, 5/32", 6940561913149
Air Turbine Tools 2590DM - 1/4" Angle Hand Tool Series (Long Version, Front Exhaust), 40,000RPM, 35844
Dynabrade 79145 1/4" W x 24" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
Air Turbine Tools 310RXSV - 1/4" Router Hand Tool Series with Brake, 30,000RPM, 43434
Dynabrade 55204 Vane Set (4pk)
Dynabrade 93252 8" Dia. x 1/2" Center Hole, 400 Grit, A/O, Arbor-Mount Sanding Star
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series, 40,000RPM, 33441
Air Turbine Tools 310RXDM - 1/4" Router Hand Tool Series with Brake, 30,000RPM, 43436
Dynabrade 94897 Re-usable Compression Fitting Ass'y (for 8mm Hose)
Dynabrade 11005 Dynafile Belt Housing Guard
Dynabrade 52474 Vane Set (4pk)
Dynabrade DYS1 Nitro Series Electric Dynisher Abrasive Finishing Tool
3M 03140, General Purpose Sanding Sponge CP041-6P, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Medium, 7100101537, 6/pack 