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 08458, Rigid Pillar Foam, 200 mL Cartridge, 7100004037
3M 87446, Silver Depressed Center Grinding Wheel, T27 Quick Change, 5 x 1/4 x 5/8-11 in, 7010412149, 20 per case
Insize 0010-A35, SOUND LEVEL METER, 35dB~130dB, 6974029777004
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663 