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 01322, Stikit Gold Film Disc Roll, 6 in, P500 grade, 7010327903, 75 discs per roll
Dynabrade 13017 Arbor Assembly 1/2"-20 Female Thread - 5/8"-11 Male Thread
3M 45094, Roloc Disc Pad TR, Soft 2 in 1/4-20 Internal, 7000045278
Dynabrade 78316 2" Dia. x 1" W x 1/4" Shank, Medium, NWN DynaBrite Wheel, 10/pack
Insize 6301, MICROMETER STAND, 6928640307300
Dynabrade 97567 1/4" Safety Coupler, Male
3M 55722, Stikit Film Disc 375L, 6 x NH P1000 w/Skipslit Liner, 7100075240, 250 per case
3M 27551, EMI Copper Foil Shielding Tape 1181, 1/2 in x 18 yd (12.70 mm x 16.5m), 7000132182
3M 01253, Red Abrasive Stikit Disc Value Pack, 6 in, P220 grade, 7010308767, 25 discs per carton
Air Turbine Tools 201DM - 1/8" Straight Hand Tool Series with Brake, 65,000 RPM, 32166
3M 33440, Cubitron II File Belt, 33440, 80+, 10 mm x 330 mm (3/8 in x 13 in), 7100033195, 10 belts per carton, 5 cartons per case
3M 19770, Utility Cloth Sheet 314D, 9 in x 11 in P120 J-weight, 7000000358
3M 05068, Cubitron II Stikit Film Disc 775L, 400+, 5 in x NH, Linered w/Tab, Die 500X, 7100145364, 250 per case 