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 10455, Cloth Sheet 481W, 220, 9 in x 11 in, 7010294811
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack
3M 81356, Venture Tape White Aluminum Foil Tape 1558HT, 72 mm a 45.7 m, 5.4 mil, 7010335933
Dynabrade 91167 1/2" W x 13" L 120 Grit A/O DynaCut Belt, 50/pack
Insize 6315, MICROMETER MEASURING FORCE DETECTOR, 6928640351143
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
Dynabrade 94992 1/4" Male Composite-Style Coupler with 1/4" Male Plug Assembly
3M 17097, Hood Assembly with Sealed Seams Inner Collar & Premium Head Suspension S-855, 7100077662, 1 EA/Case
3M 26138, PPS Series 2.0 Adapter, Type S42, 3/8 Female R-Angle, 19Thread BSP, 7100135930 