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?).

Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Standard Abrasives 840137, Quick Change Surface Conditioning GP Disc, Coarse, TSM, 1 in, 7000121648, 50 per case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 35831, Hookit Dust Extraction Flexible Radius Sanding Block, 178 mm x 66 mm, 7100256512
3M 55847, Dynamic Mixing System Nozzle, 50 per bag, 7000119977
3M 83539, Scotch Heavy Duty Packaging Tape Dispenser ST-181, Foam Handle withRetractable Blade, 7000028763
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M 05847, Dynamic Mixing System Nozzle for Fillers and Glazes, 50 Nozzles Per Carton, 7000119826
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 34425, General Purpose Sanding Sponge CP041-3PK, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Medium, 7100175218, 3/pack 