Used with standard outside micrometers with spindle .256″DIA to measure pitch diameter of screw threads.
Diameter accuracy: ?20_in. Cylindricity: 39_in.
Cylindricity: 1um. Hardness: HRC60.
Supplied with manufacturer inspection certificate.
Supplied with manufacturer inspection certificate.

3M 89486, Lens Cover FF-400-15, 7000029958, 100 ea/Bag
Dynabrade 78423 4-1/2" Dia. x 3/8" Very Fine DynaBrite Surface Conditioning Disc, 25/pack
3M 62714, Scotch-Weld Stainless Steel High Temperature Pipe Sealant PS67, White, 50 mL Tube, 7100039216, 10/case
3M 06147, Scotch Electrical Moisture Sealant Roll 06147, 2-1/2 in x 10 ft, Black,1 roll/carton, 10 rolls/Case, 7000005872
3M 30088, High Performance Industrial Plastic Adhesive 4693H, Light Amber, 5 oz Tube, 7000028594, 36/case
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M 19769, Utility Cloth Sheet 314D, 9 in x 11 in P150 J-weight, 7000000357 