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 1121-150B, DIGITAL INSIDE POINT CALIPER, 50-150mm/1.97-6", type B, 6940561940077
3M 54137, Scotch-Brite, Roloc AL Surface Conditioning Disc TR, 2 in x NH A CRS, 7100075554, 200 per case 