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 13627, 947, Hookit Disc Pad Holder, 7 in x 1 in x 5/8 in 5/8-11 Internal, 7000028353
3M 15041, Scotch Electrical Shielding Tape 24, 1 in x 15 ft (25 mm x 4,6 m), 7000031348
3M 64279, Cubitron II Stikit Film Disc 775L, 180+, 5 in x NH, Linered w/Tab, Die 500X, 7100075690, 250 per case
Standard Abrasives 78513, Ceramic Pro Type 27 Flap Disc, 645110, 4-1/2 in x 7/8 60 Y-weight, 7010369540, 10 per case
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
3M 02405, Utility Cloth Sheet 211K, 9 in x 11 in 220 J-weight, 7010299775
3M 20360, Scotch-Weld Epoxy Adhesive 2216, Gray, Part B, 5 Gallon Drum (Pail), 7000046360
Norton 66261014897 2" x 1/4" Bear-Tex NEX Rapid Blend AO Medium Grit TR (Type III) Non-Woven Wheel, 60 Each
Insize ISF-TG3, DIAL TENSION GAGE, Capacity (N) 3N, Graduation (N) 0.05N, 6928640381096
3M 07053, General Purpose Sanding Sponge CP-040NA, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100110752 