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.

Insize 9407-P6, STYLI FOR 9407, H-.787", d-.079"DIA, d1-.118"DIA, 6940561961539
3M 54136, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 2 in x NH A MED, 7100075707, 200 per case 