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?).

Standard Abrasives 725005, Buff and Blend Cross Buff HS, A/O Medium, 1-1/2 in x 1/2 in x 3 Ply x 8-32, 7000046826
3M 55563, Performance Flatback Tape 2525, Orange, 48 mm x 55 m, 9.5 mil, 24Rolls/Case, 7000088508
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
Standard Abrasives 875710, HS Mini-Brush, 4-1/2 in x 2 in x 5/8-11 FB024 35-74 A MED Medium Density, 7100082653
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 40118, High Strength Small Hole Repair, All-in-One Applicator Tool, SHR-3-AIO, 7100203787
Dynabrade 91428 1/2" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack 