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 19571, Cloth Belt 777F, 60 YF-weight, 1/8 in x 18 in, Fabri-lok, Single-flex, 7000120325, 200 per case
Dynabrade 97570 1/2" NPT Female Safety Coupler
Dynabrade 97567 1/4" Safety Coupler, Male
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956 
