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 0130-L110, LIGHT METER (BASIC TYPE), 6974029776564
3M 65490, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc, DUH580TRI-10T, 5 IN x UH, 80, 7100202914, 10 per pack
3M 64324, Foil Tape 3340, Silver, 72 mm x 45.7 m, 3.9 mil, 7010335734
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
Dynabrade 98272 1/2" NPT Female Plug
3M 9450, Disc Pad Holder 917, 7 in x 5/16 in x 3/8 in 5/8-11 Internal, 7000028549
Standard Abrasives 702559, A/O Half Taper Cartridge Roll, 1 in x 2 in x 3/16 in, 60, 7100102895
3M 19769, Utility Cloth Sheet 314D, 9 in x 11 in P150 J-weight, 7000000357
3M 08027, Marine Grade Silicone Sealant, White, 304 mL Cartridge, 7000120476, 12/Case
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M 87850, Hot Melt Adhesive 3764, Clear, Pellets, 7000136621, 22 lb/case
3M 64275, Cubitron II Stikit Film Disc 775L, 150+, 5 in x NH, Linered w/Tab, Die 500X, 7100075678, 250 per case
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 