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 29823, Sanding Screen, 100 Grit, 20 in x NH, 7100160246
Insize 1120-150AWL, DIGITAL INSIDE GROOVE CALIPER, 1-6"/25.4-150mm, built-in wireless, 6928640384769
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 92115 1/2" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
3M 37342, Versaflo Powered Air Purifying Respirator PAPR Assembly TR-617N/37342(AAD), HC Batt, BT-30 B-Tube, EC Belt, 7100035830, 1 EA/Case
3M 92575, Temflex Vinyl Electrical Tape 165, Red, 3/4 in x 60 ft (19 mm x 18 m), 6 mil, 7100169492
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
3M 14643, Scotch-Weld Metal Bonder Acrylic Adhesive DP8407NS, Gray, 490 mLDuo-Pak, 7100179480, 6/case
3M 05068, Cubitron II Stikit Film Disc 775L, 400+, 5 in x NH, Linered w/Tab, Die 500X, 7100145364, 250 per case
3M 14588, Scotch-Brite Roloc+ Cut and Polish Flap Brush, 3 in x 1-3/8 in, A MED, 7100088221
3M 18088 Scotch-Brite SE Surface Conditioning Belt, SE-BS, A/O Coarse, 1/2 in x 24 in, 7000046006
3M 36878, Self-Stick Liquid Protection Fabric, Blue, 14 in x 300 ft, 7100169505
3M 26127, PPS Series 2.0 Adapter, Type S31, 1/8 Male, 28 Thread BSP, 7100135953
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 07054, General Purpose Sanding Sponge CP041-12-CC, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Medium, 7100101246 