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.

Insize 2771-S90, SQUARE (zero setting, optional), 6940561979596
Dynabrade 91430 1/2" W x 12" L 120 Grit A/O DynaCut Belt, 50/pack 