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 60894, Impact Stripping Tape 500, Green, 1 in x 10 yd, 36 mil, 9 Rolls/Case, 7000001170
3M 45019, Diamond Grade DG3 Reflective Digital Sheeting 4081UDS, Fluorescent Yellow, 36 in x 50 yd, 1 Roll/Case, 7100282389
Standard Abrasives 702559, A/O Half Taper Cartridge Roll, 1 in x 2 in x 3/16 in, 60, 7100102895
3M 25774, Scotch-Brite Roloc Surface Conditioning Disc, TSM, 1-1/2 in x NH A MED, 7100014112, 200 per case
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 61420 Raptor Vac Electric Portable Vacuum System
3M 16066, PPS Mix Ratio Inserts, Mini (6 fl oz), 7000120511
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 16115, PPS Cup & Collar, Mini, 7000028417, 2 per carton
3M 26102, PPS Series 2.0 Adapter, Type S16, 3/8 Female, 19 Thread BSP, 7100135934
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613
3M 16203, PPS Disposable Lids, Mini, 125 Micron Filter, 7100135950
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 16205, PPS Disposable Lids, Midi, 125 Micron Full Diameter Filters, 7000120049
3M 07054, General Purpose Sanding Sponge CP-041-ESF, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Medium, 7100101551 