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 1120-1501WL, DIGITAL INSIDE GROOVE CALIPER, 1.38-6"/35-150mm, built-in wireless, 6928640384806
Standard Abrasives 710725, A/O Full Taper Cartridge Roll, 1/2 in x 1-1/2 in x 1/8 in 36, 7100085875
Dynabrade 95684 1/4" Male Coupler
Dynabrade 94993 1/4" Male Composite-Style Coupler with 1/4" Female Plug Assembly
Dynabrade 95677 1/4" Male Plug with 1/4" NPT Female Thread
3M 81356, Venture Tape White Aluminum Foil Tape 1558HT, 72 mm a 45.7 m, 5.4 mil, 7010335933
3M 27398, Rapid Removal 3 x 18 inch Power Sanding Belt, 36 grit, 7100188468, 10 per case
Dynabrade 95746 3/8" NPT Speed Regulator
Dynabrade 95675 1/4" Male Plug with 1/4" NPT Male Thread 