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 90499 1/2" W x 34" L 120 Grit A/O DynaCut Belt, 50/pack
Insize 2333-E161, EXTERNAL DIAL CALIPER GAGE, .8-1.6", 6928640358517
Dynabrade 90874 2" Dia. Very Fine NWN DynaBrite Locking-Type Disc, 25/pack
Dynabrade 79004 1/8" W x 12" L 80 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 79061 1/2" W x 24" L 60 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 59339 Vacuum Cuff, 1", w/Groove
Dynabrade 56323 3-7/8" x 5-5/8" Vacuum Dynabug II Disc Pad, Hook-Face, Short Nap
Dynabrade 90614 3" W x 10-11/16" L 80 Grit A/O DynaCut Belt, 10/pack
3M 03123, Pro Grade Precision Edge Detailing Dual Angle Sanding Sponge, 24302TRIP-XFDA, 2-7/8 in x 4.5 in x 1 in, X-Fine, 7100170066 