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 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M 30704, Cloth Belt 577F, 120 YF-weight, 2 in x 60 in, Film-lok, Single-flex, 7010292532, 50 per case
Insize 0130-L110, LIGHT METER (BASIC TYPE), 6974029776564
Dynabrade 78592 3/8" Dia. x 1" W x 1/8" Center Hole, 120 Grit, 100/pack
3M 05044, Cloth Belt 384F, 80+ XF-weight, 1/2 in x 18 in, Fabri-lok, Full-flex, 7100141434, 200 per case
3M 97957, Hi-Strength Spray Adhesive 90 CA, Low VOC <25%, Clear, 24 fl oz Can (Net Wt 19.0 oz), 7000121418, 12/Case
3M 918, Disc Pad Holder, 8 in x 5/16 in x 3/8 in 5/8-11 Internal, 7000120891
3M 64324, Foil Tape 3340, Silver, 72 mm x 45.7 m, 3.9 mil, 7010335734
3M 17251, Versaflo Economy Hood, S-403S-20, Small/Medium, 7000127463, 20 EA/Case
3M 95306, Lead Foil Tape 421, Dark Silver, 1/4 in x 36 yd, 6.3 mil, 7100103502
3M 03126, General Purpose Sanding Sponge CP040-6P, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100101532, 6/pack 