Insize ISR-CSE316, SURFACE ROUGHNESS SPECIMEN, 8pcs per set, 6928640376573

Machining method cylindrical grinding.
Ra: .1, 2, 4, 8,16,32,63,125_in. Rz: 11.9,21.0,35.2,62.4,106,176,309,613_in.
For checking, identifying and specifying the roughness by symbol.
Rust-proof, made of pure Nickel.