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?).

Norton 66623335427, 2" Dia Vortex Rapid Prep Quick-Change Non-Woven Abrasive Disc, Medium Grade, 50 Each
Insize 6302, MICROMETER STAND, 6928640392467
3M 16299, PPS Lid Dispenser: Large, Standard, or Midi, 7100042072
Dynabrade 97679 Bearing
3M 94265, Versaflo PAPR Assembly TR-304N+, with Easy Clean Belt and High Capacity Battery, 7100153811, 1 ea/Case
3M 50010, VentureClad Insulation Jacketing Tape 1577CW-WME, White, 99 mm x 13.7 m, 7010379907
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack
3M 87053, Cubitron II Stikit Film Disc 775L, 150+, 6 in x NH, Linered w/Tab, Die 600Z, 7100075207, 250 per case
Standard Abrasives 875503, Buff and Blend GP Mounted Flap Brush, Very Fine, 3 in x 2 in x 1/4 in, 7000122256
3M 26199, PPS Series 2.0 Lid, Standard/Large, 125 Micron Filter, 7100135628
3M 49936, Roloc Disc 361F, 36 YF-weight, TSM, 2 in, Die RS200PM, 7000119014
3M 87105, Cubitron II Stikit Film Disc 775L, 220+, 6 in x NH, Linered w/Tab, Die 600Z, 7100075221, 250 per case
3M 27714, Cubitron II Roloc Durable Edge Disc 984F, 60+, YF-weight, TSM, Maroon, 3 in, Die RS300VM, 7000045174, 200 per case
Standard Abrasives 725006, Buff and Blend Cross Buff HP, A/O VFN, 1-1/2 in x 1/2 in x 3 Ply x 8-32, 7000046827
3M 33439, Cubitron II File Belt, 33439, 60+, 10 mm x 330 mm (3/8 in x 13 in), 7100033194, 10 belts per carton, 5 cartons per case
Dynabrade 90874 2" Dia. Very Fine NWN DynaBrite Locking-Type Disc, 25/pack
3M 26127, PPS Series 2.0 Adapter, Type S31, 1/8 Male, 28 Thread BSP, 7100135953
3M 14215, Roloc Disc Pad TS and TSM, Medium 3 in 1/4-20 Internal, 7000119310
Dynabrade 78380 3" Dia. x 1/2", Dyna Premium Rapid Strip TR Disc, 25/pack
Norton 66261199696 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 7AM U2305, 40 Each
Standard Abrasives 78511, Ceramic Pro Type 27 Flap Disc, 645104, 4-1/2 in x 5/8-11 80 Y-weight, 7010331461
3M 07053, General Purpose Sanding Sponge CP-040NA, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100110752 