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 33446, Cubitron II File Belt, 80+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033186, 10 belts per carton, 5 cartons per case
3M 84648, Scotch Clear Glue in 2-way Applicator, 6050, 1.6 oz, 7000052506
3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
Insize 7231, SCRIBER, 6928640320071
Dynabrade 01494 Air Inlet Bushing
3M 16622, Scotch-Brite Cut and Polish Flap Brush, 2 in x 1 in x 1/4 in A MED, 7000121151
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 01875, Charge-Collection Solar Tape 3011, 2 mm x 1200 m, 7010312686
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 15041, Scotch Electrical Shielding Tape 24, 1 in x 15 ft (25 mm x 4,6 m), 7000031348
Standard Abrasives 877002, Unitized Mounted Point, 811 B52 x 1/8 in, 3M 7100025527
3M 26016, PPS Series 2.0 Adapter, Type S9, 16 mm Male, 1.5 mm Thread, 7100135330
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 08275, Rigid Parts Repair, 08275, Blue, 400 mL Cartridge, 7000119864
3M 20967, Portable Utility Cloth Roll 314D, P240 J-weight, 1 in x 20 yd, 7010290604
3M 05687, Hookit Sanding Block, 1-1/2 in X 2-5/8 in X 10-3/4 in, 7000119960
3M 26137, PPS Series 2.0 Adapter, Type S41, Trapezoidal Thread - QCC, 7100135947
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M 09413, Scotch-Brite Contour Surface Paint and Varnish Remover 9413NA, 7000052005 