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 51458 6"-8" (152 mm-203 mm) Dia. Right Angle Two-Hand Rotary Buffer
Insize TLP-300H-C1, BT50/BT30 converter, 6928640377242 