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 Flatback Tape 2517, Medium Brown, 100 mm x 55 m, 6.5 mil, 8Rolls/Case, 7000088504
3M High Performance Flatback Tape 2519, Tan, 18 mm x 55 m, 48 Roll/Case, 7100243626
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956 