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 95848 Dynabrade Gear Oil
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
3M 26613, Accuspray Atomizing Head Refill Pack for 3M PPS Series 2.0,Green, 1.3 mm, 7100141415 (4 Nozzles/Kit)
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 14502 Scotch-Brite Surface Conditioning Belt, 3/8 in x 13 in, A MED, 7100103026
3M 00254, Scotch-Brite Clean and Finish Roll, 12" x 30ft, CF-RL, Talc, 7000045859
3M 17528 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Very Fine, 1-1/2 in x 60 in, 7010292405
3M 62816, Adhesive Sealant 760 UV, White, 600 mL Sausage Pack, 7000046609, 12/Case
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 54762, SandBlaster Quick Change Hub for Right Angle Grinder 9675, 4.5 in, 7010301728 