Milling Data Recommended(For reference only,please use it according to your producing environment) Fit work piece Condition (HB) BU810 BPU109 VC(m/min) ap(mm) fz(mm/t) VC(m/min) ap(mm) fz(mm/t) Reflectal Unhardening 60 300-3000 0.5-5.0 0.1-0.35 300-3000 0.5-5.0 0.05-0.35 100 100-2500 100-2500 Birmasil Si≤12% Unhardening 75 100-2000 100-2000 Hardening 90 100-1800 100-1800 Si≥12% high temperature 130 100-1000 100-1000