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 21432 ND220, Vane 5/Pack
Insize ISY-700-90008, STAND, 6940561980660
Dynabrade 95756 Speed Control for Extreme Dynorbital Sanders
Dynabrade 78020 1/2" W x 18" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 56826 6" Dia. Non-Vacuum Dynorbital Supreme Random Orbital Sander, 3/16" Orbit
Dynabrade 91428 1/2" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack 