RECOMMENDED CUTTING CONDITIONS y Dry Cutting (inch) Work Material Hardness Grade Breaker vc(SFM) fz(IPT) ap ae P MP6120 R 490 (330 ─ 655) .024 < .063 <0.5DC MP6120 R 490 (330 ─ 655) .031 < .063 0.5 ─ 0.8DC MP6120 M 490 (330 ─ 655) .039 < .063 0.8 ─1DC Mild Steel <180HB MP6130 R 425 (260 ─ 590) .024 < .063 <0.5DC MP6130 R 425 (260 ─ 590) .031 < .063 0.5 ─ 0.8DC MP6130 M 425 (260 ─ 590) .039 < .063 0.8 ─1DC MP6120 R 425 (260 ─ 590) .024 < .063 <0.5DC MP6120 R 425 (260 ─ 590) .031 < .063 0.5 ─ 0.8DC Carbon Steel,Alloy Steel 180 ─ 280HB MP6120MP6130 M 425 (260 ─ 590)R360 (195 ─ 525).039.024 < .063 0.8 ─1DC< .063<0.5DC MP6130 R 360 (195 ─ 525) .031 < .063 0.5 ─ 0.8DC MP6130 M 360 (195 ─ 525) .039 < .063 0.8 ─1DC MP6120 R 330 (165 ─ 490) .020 < .063 <0.5DC MP6120 R 330 (165 ─ 490) .024 < .063 0.5 ─ 0.8DC Carbon Steel,Alloy Steel 280 ─ 350HB MP6120MP6130 R 330 (165 ─ 490) .028R260 (100 ─ 425).020< .0630.8 ─1DC< .063<0.5DC MP6130 R 260 (100 ─ 425) .024 < .063 0.5 ─ 0.8DC MP6130 R 260 (100 ─ 425) .028 < .063 0.8 ─1DC MP6120 R 330 (165 ─ 490) .020 < .063 <0.5DC MP6120 R 330 (165 ─ 490) .024 < .063 0.5 ─ 0.8DC Alloy Tool Steel < 350HB MP6120 R 330 (165 ─ 490) .028 < .063 0.8 ─1DC(Annealing)MP6130R260 (100 ─ 395).020< .063<0.5DC MP6130 R 260 (100 ─ 395) .024 < .063 0.5 ─ 0.8DC MP6130 R 260 (100 ─ 395) .028 < .063 0.8 ─1DC MP6120 R 330 (230 ─ 425) .020 < .063 <0.5DC MP6120 R 330 (230 ─ 425) .024 < .063 0.5 ─ 0.8DC Pre-hardened Steel 35 ─ 45HRC MP6120MP6130 R 330 (230 ─ 425) .028R260 (165 ─ 360).020< .0630.8 ─1DC< .063<0.5DC MP6130 R 260 (165 ─ 360) .024 < .063 0.5 ─ 0.8DC MP6130 R 260 (165 ─ 360) .028 < .063 0.8 ─1DC K MC5020 R 490 (330 ─ 655) .024 < .063 <0.5DC MC5020 R 490 (330 ─ 655) .031 < .063 0.5 ─ 0.8DC Gray Cast Iron Tensile Strength MC5020 M 490 (330 ─ 655) .039 < .063 0.8 ─1DC< 350MPaVP15TFM395 (260 ─ 525).024< .063<0.5DC VP15TF M 395 (260 ─ 525) .031 < .063 0.5 ─ 0.8DC VP15TF M 395 (260 ─ 525) .039 < .063 0.8 ─1DC MC5020 R 490 (330 ─ 655) .024 < .063 <0.5DC L MC5020 R 490 (330 ─ 655) .031 < .063 0.5 ─ 0.8DC Ductile Cast Ilon Tensile Strength MC5020 M 490 (330 ─ 655) .039< 450MPaVP15TFR395 (260 ─ 525).024< .0630.8 ─1DC< .063<0.5DC VP15TF R 395 (260 ─ 525) .031 < .063 0.5 ─ 0.8DC VP15TF M 395 (260 ─ 525) .039 < .063 0.8 ─1DC MC5020 R 490 (330 ─ 655) .020 < .063 <0.5DC MC5020 R 490 (330 ─ 655) .024 < .063 0.5 ─ 0.8DC Ductile Cast Ilon Tensile Strength MC5020 R 490 (330 ─ 655) .028< 800MPaVP15TFR395 (260 ─ 525).020< .0630.8 ─1DC< .063<0.5DC VP15TF R 395 (260 ─ 525) .024 < .063 0.5 ─ 0.8DC VP15TF R 395 (260 ─ 525) .028 < .063 0.8 ─1DC H VP15TF R 230 (165 ─ 295) .016 < .063 <0.5DC Hardened Steel 40 ─ 55HRC VP15TF R 230 (165 ─ 295) .020 < .063 0.5 ─ 0.8DC VP15TF R 230 (165 ─ 295) .024 < .063 0.8 ─1DC Note 1) When clamp rigidity is low and tool overhang is long, we recommended to reduce the cutting speed and the feed rate by 30%. L047 INDEXABLE MILLING