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?).

3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle, RightAngle, 7000058900
Dynabrade 94990 1/4" Female Composite-Style Coupler with 1/4" Male Plug Assembly
Insize 1120-3001WL, DIGITAL INSIDE GROOVE CALIPER, 1.97-12"/50-300mm, buit-in wireless, 6928640384844
3M 26128, PPS Series 2.0 Adapter, Type S33, 1/8 Female, 27 Thread NPT, 7100135950
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
3M 14276 Scotch-Brite Surface Conditioning Belt, 1/4 in x 18 in, A MED, 7000120687
Standard Abrasives 703654, A/O Square Pad, 2 in x 2 in x 1/2 in, 1/4-20, 80, 7100105433
Dynabrade 97567 1/4" Safety Coupler, Male
3M 26432, PPS Series 2.0 Sealing Plug, 96 plugs per pack, 7100135627
Dynabrade 98265 3/8" Female Coupler with 3/8" Male Plug Assembly
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 