METRIC Baseline METRIC BaselineSpeed and Feed DC • (mm) Square & Ball End VcWith and Without ReachHardness(m/min)0.10.5 1 1.5 2 2.5 3 Profile 111 RPM 353837 70767 35384 23589 17692 14153 11795 Fz 0.00043 0.00216 0.00432 0.00648 0.00865 0.01081 0.01297 CARBON STEELSP1018, 1040, 1080, 1090,10L50, 1140, 1212,12L15, 1525, 1536≤ 275 Bhnor≤ 28 HRcSlot(89-134)Feed (mm/min)306306306306306 30688RPM28113156226281131874214057112453069371 Fz 0.00043 0.00216 0.00432 0.00648 0.00865 0.01081 0.01297 (71-106) Feed (mm/min) 243 243 243 243 243 243 243 Profile 64 RPM 203577 40715 20358 13572 10179 8143 6786 Fz 0.00038 0.00192 0.00384 0.00576 0.00769 0.00961 0.01153 ALLOY STEELSP4140, 4150, 4320, 5120,5150, 8630, 86L20,50100≤ 375 Bhnor≤ 40 HRcSlot(51-77)Feed (mm/min)156156156 156 15650RPM159954319911599510664799815663981565332 Fz 0.00038 0.00192 0.00384 0.00576 0.00769 0.00961 0.01153 (40-60) Feed (mm/min) 123 123 123 123 123 123 123 Profile 104 RPM 329602 65920 32960 21973 16480 13184 10987 Fz 0.00043 0.00216 0.00432 0.00648 0.00865 0.01081 0.01295 STAINLESS STEELSM(FREE MACHINING)303, 416, 420F, 430F,440F≤ 275 Bhnor≤ 28 HRcSlot(83-124)Feed (mm/min)285285285 285 285 28582RPM26174252348261741744913087104702858725 Fz 0.00043 0.00216 0.00432 0.00648 0.00865 0.01081 0.01295 (66-99) Feed (mm/min) 226 226 226 226 226 226 226 Profile 72 RPM 227813 45563 22781 15188 11391 9113 7594 Fz 0.00038 0.00192 0.00385 0.00577 0.00769 0.00961 0.01154 STAINLESS STEELS ≤ 275 Bhn (57-86) Feed (mm/min) 175 175 175 175 175 175 175 M (DIFFICULT) or 304, 304L, 316, 316L ≤ 28 HRc Slot 56 RPM 179342 35868 17934 11956 8967 7174 5978 Fz 0.00038 0.00192 0.00385 0.00577 0.00769 0.00961 0.01154 (45-68) Feed (mm/min) 138 138 138 138 138 138 138 Profile 66 RPM 208425 41685 20842 13895 10421 8337 6947 Fz 0.00027 0.00136 0.00272 0.00408 0.00544 0.00680 0.00819 STAINLESS STEELSM(PH)13-8 PH, 15-5PH,17-4 PH, CUSTOM 450≤ 325 Bhnor≤ 35 HRcSlot(52-79)Feed (mm/min)113113113 113 11352RPM164801329601648010987824011365921135493 Fz 0.00027 0.00136 0.00272 0.00408 0.00544 0.00680 0.00819 (41-62) Feed (mm/min) 90 90 90 90 90 90 90 Profile 93 RPM 295672 59134 29567 19711 14784 11827 9856 CAST IRONS(LOW & MEDIUM ≤ 220 Bhn Fz 0.00043 0.00217 0.00433 0.00650 0.00866 0.01083 0.01301(74-112)Feed (mm/min)256256256256256256256 K ALLOY) or Gray, Malleable,Ductile ≤ 19 HRc Slot 75 RPM 237507 47501 23751 15834 11875 9500 7917Fz0.000430.002170.004330.006500.008660.010830.01301 (60-90) Feed (mm/min) 206 206 206 206 206 206 206 Profile 305 RPM 969416 193883 96942 64628 48471 38777 32314 Fz 0.00128 0.00639 0.01277 0.01916 0.02555 0.03193 0.03832 ALUMINUM ALLOYS ≤ 150 Bhn (244-366) Feed (mm/min) 2477 2477 2477 2477 2477 2477 2477 N 2017, 2024, 356, 6061, or 7075 ≤ 7 HRc Slot 244 RPM 775533 155107 77553 51702 38777 31021 25851 Fz 0.00128 0.00639 0.01277 0.01916 0.02555 0.03193 0.03832 (195-293) Feed (mm/min) 1981 1981 1981 1981 1981 1981 1981 Profile 157 RPM 499249 99850 49925 33283 24962 19970 16642 Fz 0.00096 0.00479 0.00959 0.01438 0.01917 0.02396 0.02876 COPPER ALLOYS ≤ 140 Bhn (126-188) Feed (mm/min) 957 957 957 957 957 957 957 N Alum Bronze, C110, or Muntz Brass ≤ 3 HRc Slot 125 RPM 397461 79492 39746 26497 19873 15898 13249 Fz 0.00096 0.00479 0.00959 0.01438 0.01917 0.02396 0.02876 (100-150) Feed (mm/min) 762 762 762 762 762 762 762 continued on next page 98 END MILLS wwEwN.DsgMsImLLicSrotools.com