Machining method: cylindrical lapping.
Ra: 1, 2, 4, 8_in. Rz: 18, 22, 25, 49_in. Quantity 4pcs; superfinishing. Ra: 1, 2, 4, 8_in. Rz: 14, 28, 40, 56_in. Quantity 4pcs.
For checking, identifying and specifying the roughness by symbol.
Rust-proof, made of pure Nickel.

3M 12952, Scotch-Brite Roloc Surface Conditioning Disc, SC-DR, A/O Very Fine, TR, 4 in, 7100007032, 100 per case
3M 27892, GoggleGear 6000 Series, GG6002SGAF-BLK, Black Shroud, Scotchgard Anti-Fog Coating, Gray AF-AS lens, 10ea/cs, 7100191930
3M 51003, Surface Protection Fabric 14 in x 50 ft, 7100223608
3M 18364, Scotch-Brite Roloc Coating Removal Disc, CR-DR, SiC Extra Coarse, 18364, 2 in x NH, 7000046010, 60 per case
3M 18355, Scotch-Brite Coating Removal Disc, CR-DH, SiC Extra Coarse, 5 in x NH, 7000120845
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle, RightAngle, 7000058900
3M 06839, Booth Coating, 1 Galllon, 7000028421
3M 54109, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 1-1/2 in x NH A MED, 7100075533, 200 per case
3M 18483, Scotch-Brite Coating Removal Disc, 5 in x NH S XCS Bulk, 7000046033
3M 18485, Scotch-Brite Coating Removal Disc, 7 in x NH S XCS Bulk, 7000120884
3M 15041, Scotch Electrical Shielding Tape 24, 1 in x 15 ft (25 mm x 4,6 m), 7000031348
3M 54136, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 2 in x NH A MED, 7100075707, 200 per case 