METRIC Series 33 Ap Series Diameter (D1) Ae Ae (mm) 33MCR Vc Metric Hardness Ae x D1 Ap x D1 (m/min) 3 6 8 10 12 16 20 Profile 168 RPM 17773 8886 6665 5332 4443 3332 2666 CARBON STEELS ≤ 0.5 ≤ 1.5 (134-201) Fz 0.012 0.029 0.049 0.061 0.074 0.100 0.107 1018, 1040, 1080, ≤ 275 Bhn Feed (mm/min) 640 768 981 981 992 998 853 1090, 10L50, 1140, or 1212, 12L15, 1525, ≤ 28 HRc Slot 134 RPM 14218 7109 5332 4265 3555 2666 2133 1536 1 ≤1 Fz 0.012 0.029 0.049 0.061 0.074 0.100 0.107 (107-161) Feed (mm/min) 512 614 785 785 793 798 682 P Profile 96 RPM 10179 5089 3817 3054 2545 1909 1527 ≤ 0.5 ≤ 1.5 (77-115) Fz 0.010 0.022 0.036 0.045 0.055 0.074 0.080 ALLOY STEELS ≤ 375 Bhn Feed (mm/min) 293 330 415 415 421 425 366 4140, 4150, 4320, or 5120, 5150, 8630, ≤ 40 HRc 76 RPM 8078 4039 3029 2424 2020 1515 1212 86L20, 50100 Slot 1 ≤1 (61-91) Fz 0.010 0.022 0.036 0.045 0.055 0.074 0.080 Feed (mm/min) 233 262 330 330 334 337 291 Profile 56 RPM 5978 2989 2242 1793 1495 1121 897 ≤ 0.5 ≤ 1.5 (45-68) Fz 0.007 0.017 0.030 0.037 0.043 0.059 0.064 TOOL STEELS ≤ 375 Bhn Feed (mm/min) 129 151 201 201 194 198 172 H A2, D2, H13, L2, M2, or 44 RPM 4686 2343 1757 1406 1171 879 703 P20, S7, T15, W2 ≤ 40 HRc Slot 1 ≤1 (35-53) Fz 0.007 0.017 0.030 0.037 0.043 0.059 0.064 Feed (mm/min) 101 118 157 157 152 155 135 Profile 136 RPM 14380 7190 5392 4314 3595 2696 2157 CAST IRONS ≤ 0.5 ≤ 1.5 (109-163) Fz 0.008 0.026 0.045 0.056 0.067 0.090 0.096 (LOW & MEDIUM ≤ 220 Bhn Feed (mm/min) 362 569 725 725 725 725 621 ALLOY) or 108 RPM 11471 5736 4302 3441 2868 2151 1721 Gray, Malleable, ≤ 19 HRc Slot Ductile 1 ≤1 Fz 0.008 0.026 0.045 0.056 0.067 0.090 0.096 (87-130) Feed (mm/min) 289 454 578 578 578 578 496 K 104 RPM 10987 5493 4120 3296 2747 2060 1648 Profile ≤ 0.5 ≤ 1.5 (83-124) Fz 0.007 0.019 0.034 0.043 0.050 0.067 0.072 CAST IRONS ≤ 260 Bhn Feed (mm/min) 237 316 422 422 415 411 356 (HIGH ALLOY) or Gray, Malleable, ≤ 26 HRc 82 RPM 8725 4362 3272 2617 2181 1636 1309 Ductile Slot 1 ≤1 (66-99) Fz 0.007 0.019 0.034 0.043 0.050 0.067 0.072 Feed (mm/min) 188 251 335 335 330 327 283 Profile 149 RPM 15834 7917 5938 4750 3958 2969 2375 ≤ 0.5 ≤ 1.5 (119-179) Fz 0.009 0.024 0.041 0.051 0.060 0.079 0.085 STAINLESS STEELS ≤ 275 Bhn Feed (mm/min) 433 570 722 722 712 707 608 M (FREE MACHINING) or 303, 416, 420F, ≤ 28 HRc 119 RPM 12602 6301 4726 3781 3151 2363 1890 430F, 440F Slot 1 ≤1 (95-143) Fz 0.009 0.024 0.041 0.051 0.060 0.079 0.085 Feed (mm/min) 345 454 575 575 567 563 484 continued on next page 96 END MILLS wwwE.kNyDoMceILraLS-sgstool.com