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.

3M 19766, Utility Cloth Sheet 314D, 9 in x 11 in P240 J-weight, 7000000354
3M 20932, PSA Cloth Disc 348D, 80 X-weight, 1 in x NH, Die 100N, 7000118914
Insize 6301, MICROMETER STAND, 6928640307300
Dynabrade 78592 3/8" Dia. x 1" W x 1/8" Center Hole, 120 Grit, 100/pack
3M 16298, PPS Lid & Liner Dispenser: Mini & Micro, 7100042777
3M 33443, Cubitron II File Belt, 36+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033184, 10 belts per carton, 5 cartons per case 