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 00581 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Medium, 2-1/2 in x 60 in, 7010329198
Insize MLP-HCM102, AUTOMATIC TUTTING MACHINE (ADVANCED TYPE), 100mm, 6974029771613
3M 77154 Scotch-Brite Durable Flex Belt, 1/2 in x 18 in, A FIN, Trial Pack, 7010310032
3M 04281 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Very Fine, 4 in x 132 in, 7010292398
3M 01875, Charge-Collection Solar Tape 3011, 2 mm x 1200 m, 7010312686
3M 77157 Scotch-Brite Durable Flex Belt, 77157, 1/2 in x 18 in, A MED, Trial Pack, 7010365702
3M 23791, VHB Tape 4905, Clear, 8-1/2 in x 11 in, 20 mil, Sheet, 7000125240 