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 MLP-GP280-U, GRINDER AND POLISHER, 6940561981704
Dynabrade 54040 5/8"-11 Female, 5/16"-24 Female, 1-5/8" Length
Dynabrade 79808 DynaBolt AO 4" x .035" x 3/8" T1 Cut-off Wheel, Box of 10 Discs
Dynabrade 11011 Idler Arm Assembly
Dynabrade 97567 1/4" Safety Coupler, Male
3M 19892, Neoprene High Performance Contact Adhesive 1357, Gray-Green, 1 Quart Can, 7000046324, 12/case 