End Mill Series. 1 2mm y 0 20 40 60 80 100 120 VF2SB VF2SB VF2XLB VF2SB R3 DH31S (52HRC) 16,000min1 (284m/min) VF2XLB NAK80 (43HRC) 20,000min1 (68m/min) a a a a a a 3700HV 100N 1300°C 3200HV 80N 1100°C (Al,Ti,Si)N 2800HV 80N 840°C (Al,Ti)N Features Miracle end mills for increased cutting speeds, efficiency and tool life when milling .