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 57920 4" W x 4-5/16" L Dynabug "Model T" Orbital Sander, Non-Vacuum with Clips, 20,000 RPM, 3/32" Orbit
Dynabrade 11004 Dynafile Screw-In Housing
Dynabrade 95685 - 1/4" Male Coupler with 1/4" Male Plug Assembly
Dynabrade 98272 1/2" NPT Female Plug
Dynabrade 78196 3" Dia. x 50 Grit A/O DynaCut Locking-Type Disc, 2 Ply Cloth, 25/pack
Dynabrade 82566 3/4" W x 18" L 120 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 51665 Valve
Dynabrade 01495 1/8" (.125) Capacity Collet Sleeve
Dynabrade 94990 1/4" Female Composite-Style Coupler with 1/4" Male Plug Assembly
Dynabrade 56862 6" Dia. Self-Generated Vacuum Dynorbital Supreme Random Orbital Sander, 3/32" Orbit
Dynabrade 92228 1/8" W x 18" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 94528 Felt Silencer
Dynabrade 95690 3/4" NPT Original Aluminum Style Dynaswivel
Dynabrade 50884 - 5" (127 mm) Dia. Non-Vacuum Wey/Dry Sander Disc Pad, Hook-Face, Short Nap
3M 77579, Cubitron ll Cloth Belt 784F, 36+ YF-weight, 1/2 in x 24 in, Fabri-lok 45 Angle, Single-flex, 7100232690, 200 per case 