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 90368 3/4" W x 34" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 01480 Vane Set (4pk)
Insize 2151-AL55, DIGITAL INTERNAL CALIPER GAGE, 1.4-2.2"/35-55mm, 6928640313974
Dynabrade 56180 5" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap 