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 18451, Scotch-Brite Heavy Duty Hand Pad 7440B, HP-HP, A/O Medium, 6 in x 9 in, 7000000715, 40 ea/Case
3M Super Abrasives Roloc Disc, 2" Type-R, Medium AO High Strength, Box of 50
3M 82583, Hot Melt Adhesive 3792 AE, Clear, 0.45 in x 12 in, 7100020335, 11 lb/case
3M 43797, Hi-Strength 90 Spray Adhesive, Clear, 5 Gallon Drum (Pail), 7100004706
Insize 6315, MICROMETER MEASURING FORCE DETECTOR, 6928640351143
Dynabrade 78764 2" Dia. x 2" W x 1/4" Shank, Medium, NWN DynaBrite Wheel, 10/pack
3M 86803, Cubitron II Stikit Film Disc 775L, 120+, 5 in x NH, Linered w/Tab, Die 500X, 7100045865, 250 per case
3M 07053, General Purpose Sanding Sponge CP-040NA, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100110752 