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.

Dynabrade 79187 1/4" W x 18" L 120 Grit Dynafire Premium Ceramic Belt, 50/pack
Dynabrade 59179 6" Dia. Dynorbital-Spirit Random Orbital Sander, Non-Vacuum, 3/16" Orbit
Dynabrade 40378 Rubber Drive Wheel, Mini Dynafile II
Dynabrade 40534 Brush
3M 28830, 675L, 1/2" X 72", 74u, Diamond Microfinishing Film Belt 7010508919
Insize 2197, LARGE RANGE DIGITAL RADIUS GAGE, R1(4-590"/100-1500mm), R2(4-590"/100-1500mm), 697409778087
Dynabrade 55501 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 3mm Collet
Dynabrade 64674 Filter Cartridge
Dynabrade 92119 1/4" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack 