For checking, identifying and specifying
the roughness by symbol
Accuracy: +20% ~ -25%, Ra<0.1µm
Accuracy: +12% ~ -17%, Ra>0.1µm
Meets ISO 2632 (ISR-CS329 meets ISO 8503/1)
Rust-proof, made of pure Nickel
Reaming
Roughness (Ra) : 0.4, 0.8, 1.6, 3.2µm
Roughness (Rz):1.7, 3.2, 6.4, 12.8µm
Drilling
Roughness (Ra) : 1.6, 3.2, 6.3, 12.5µm
Roughness (Rz):7.5, 15.5, 31, 60µm
