Machining method honing. Ra: 2, 4, 8, 16, 32, 63?in. Rz: 12, 22, 40, 80, 168, 360?in. For checking, identifying and specifying the roughness by symbol. Rust-proof, made of pure Nickel.
Machining method polishing. Ra: .5, 1, 2, 4, 8?in. Rz: 12, 14, 27, 29, 61?in. For checking, identifying and specifying the roughness by symbol. Rust-proof, made of pure Nickel.