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 20889, PSA Cloth Disc 348D, 50 X-weight, 5 in x NH, Die 500X, 7010294666
3M 50010, VentureClad Insulation Jacketing Tape 1577CW-WME, White, 99 mm x 13.7 m, 7010379907
Insize 7232, SCRIBER, 6928640320088
3M 33440, Cubitron II File Belt, 33440, 80+, 10 mm x 330 mm (3/8 in x 13 in), 7100033195, 10 belts per carton, 5 cartons per case
3M 80514, Disc Pad Face Plate Ribbed, 7 in Extra Hard Red, 7000028419
Standard Abrasives 840139, Quick Change Surface Conditioning GP Disc, Very Fine, TSM, 1 in, 7000121847, 50 per case
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series with Brake, 30,000RPM, 33434
3M 19770, Utility Cloth Sheet 314D, 9 in x 11 in P120 J-weight, 7000000358
Dynabrade 51812 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 3/32" Collet
3M 19764, Utility Cloth Sheet 314D, 9 in x 11 in P320 J-weight, 7000000352
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack 