FRACTIONAL 2 Flute: Square, Double, Stub, Long, Ball, Corner Radius 3 Flute: Square, Ball, Tapered 4 Flute: Square, Double, Stub, Ball, Corner Radius Tapered: Square, Radius Ap Series Diameter (D1) 1, 3, 5, 14, 15, 16, Ae Ae (inch) 17, 23, 24, 59 Vc 1/64 1/32 1/16 1/8 1/4 3/8 1/2 3/4 1 Fractional Hardness Flutes Ae x D1 Ap x D1 (sfm) 460 RPM 112461 56230 28115 14058 7029 4686 3514 2343 1757 Profile Fz 0.00003 0.00006 0.00013 0.0003 0.0008 0.0015 0.0020 0.0024 0.0028 2 ≤ 0.50 ≤ 1.5 (368-552) Feed 6.7 6.7 7.3 8.4 11.2 14.1 14.1 11.2 9.8 CARBON STEELS 3 ≤ 0.25 ≤ 1.5 (ipm) 10.1 10.1 11.0 12.7 16.9 21.1 21.1 16.9 14.8 1018, 1040, 1080, ≤ 175 Bhn 4 ≤ 0.25 ≤ 1.5 13.5 13.5 14.6 16.9 22.5 28.1 28.1 22.5 19.7 1090, 10L50, 1140, or 335 RPM 81901 40950 20475 10238 5119 3413 2559 1706 1280 1212, 12L15, 1525, ≤ 7 HRc Fz 0.00003 0.00006 0.00013 0.0003 0.0008 0.0015 0.0020 0.0024 0.0028 1536 Slot 2 1 ≤1 (268-402) Feed 4.9 4.9 5.3 6.1 8.2 10.2 10.2 8.2 7.2 3 1 ≤ 0.5 (ipm) 7.4 7.4 8.0 9.2 12.3 15.4 15.4 12.3 10.7 P 4 1 ≤ 0.4 9.8 9.8 10.6 12.3 16.4 20.5 20.5 16.4 14.3 335 RPM 81901 40950 20475 10238 5119 3413 2559 1706 1280 Profile Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021 2 ≤ 0.50 ≤ 1.5 (268-402) Feed 3.3 4.1 3.7 4.1 6.1 7.5 7.7 6.1 5.4 ALLOY STEELS ≤ 275 Bhn 3 ≤ 0.25 ≤ 1.5 (ipm) 4.9 6.1 5.5 6.1 9.2 11.3 11.5 9.2 8.1 4140, 4150, 4320, or 4 ≤ 0.25 ≤ 1.5 6.6 8.2 7.4 8.2 12.3 15.0 15.4 12.3 10.7 5120, 5150, 8630, ≤ 28 HRc 245 RPM 59898 29949 14974 7487 3744 2496 1872 1248 936 86L20, 50100 Slot Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021 2 1 ≤1 (196-294) Feed 2.4 3.0 2.7 3.0 4.5 5.5 5.6 4.5 3.9 3 1 ≤ 0.5 (ipm) 3.6 4.5 4.0 4.5 6.7 8.2 8.4 6.7 5.9 4 1 ≤ 0.4 4.8 6.0 5.4 6.0 9.0 11.0 11.2 9.0 7.9 315 RPM 77011 38506 19253 9626 4813 3209 2407 1604 1203 Profile Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021 2 ≤ 0.50 ≤ 1.5 (252-378) Feed 3.1 3.9 3.5 3.9 5.8 7.1 7.2 5.8 5.1 TOOL STEELS ≤ 250 Bhn 3 ≤ 0.25 ≤ 1.5 (ipm) 4.6 5.8 5.2 5.8 8.7 10.6 10.8 8.7 7.6 H A2, D2, H13, L2, M2, or 4 ≤ 0.25 ≤ 1.5 6.2 7.7 6.9 7.7 11.6 14.1 14.4 11.6 10.1 P20, S7, T15, W2 ≤ 24 HRc 230 RPM 56230 28115 14058 7029 3514 2343 1757 1171 879 Slot Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021 2 1 ≤1 (184-276) Feed 2.2 2.8 2.5 2.8 4.2 5.2 5.3 4.2 3.7 3 1 ≤ 0.5 (ipm) 3.4 4.2 3.8 4.2 6.3 7.7 7.9 6.3 5.5 4 1 ≤ 0.4 4.5 5.6 5.1 5.6 8.4 10.3 10.5 8.4 7.4 335 RPM 81901 40950 20475 10238 5119 3413 2559 1706 1280 Profile Fz 0.00003 0.00006 0.00013 0.0003 0.0008 0.0015 0.0020 0.0024 0.0028 2 ≤ 0.50 ≤ 1.5 (268-402) Feed 4.9 4.9 5.3 6.1 8.2 10.2 10.2 8.2 7.2 CAST IRONS ≤ 220 Bhn 3 ≤ 0.25 ≤ 1.5 (ipm) 7.4 7.4 8.0 9.2 12.3 15.4 15.4 12.3 10.7 K Gray, Malleable, or 4 ≤ 0.25 ≤ 1.5 9.8 9.8 10.6 12.3 16.4 20.5 20.5 16.4 14.3 Ductile ≤ 19 HRc 245 RPM 59898 29949 14974 7487 3744 2496 1872 1248 936 Slot Fz 0.00003 0.00006 0.00013 0.0003 0.0008 0.0015 0.0020 0.0024 0.0028 2 1 ≤1 (196-294) Feed 3.6 3.6 3.9 4.5 6.0 7.5 7.5 6.0 5.2 3 1 ≤ 0.5 (ipm) 5.4 5.4 5.8 6.7 9.0 11.2 11.2 9.0 7.9 4 1 ≤ 0.4 7.2 7.2 7.8 9.0 12.0 15.0 15.0 12.0 10.5 370 RPM 90458 45229 22614 11307 5654 3769 2827 1885 1413 Profile Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021 2 ≤ 0.50 ≤ 1.5 (296-444) Feed 3.6 4.5 4.1 4.5 6.8 8.3 8.5 6.8 5.9 STAINLESS STEELS ≤ 275 Bhn 3 ≤ 0.25 ≤ 1.5 (ipm) 5.4 6.8 6.1 6.8 10.2 12.4 12.7 10.2 8.9 (FREE MACHINING) or 4 ≤ 0.25 ≤ 1.5 7.2 9.0 8.1 9.0 13.6 16.6 17.0 13.6 11.9 303, 416, 420F, 430F ≤ 28 HRc 270 RPM 66010 33005 16502 8251 4126 2750 2063 1375 1031 440F Slot Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021 2 1 ≤1 (216-324) Feed 2.6 3.3 3.0 3.3 5.0 6.1 6.2 5.0 4.3 3 1 ≤ 0.5 (ipm) 4.0 5.0 4.5 5.0 7.4 9.1 9.3 7.4 6.5 M 4 1 ≤ 0.4 5.3 6.6 5.9 6.6 9.9 12.1 12.4 9.9 8.7 255 RPM 62342 31171 15586 7793 3896 2598 1948 1299 974 Profile Fz 0.00002 0.00004 0.00008 0.0002 0.0005 0.0009 0.0012 0.0014 0.0017 2 ≤ 0.50 ≤ 1.5 (204-306) Feed 2.5 2.5 2.5 2.6 3.9 4.7 4.7 3.6 3.3 STAINLESS STEELS 3 ≤ 0.25 ≤ 1.5 (ipm) 3.7 3.7 3.7 4.0 5.8 7.0 7.0 5.5 5.0 (DIFFICULT) ≤ 275 Bhn 4 ≤ 0.25 ≤ 1.5 5.0 5.0 5.0 5.3 7.8 9.4 9.4 7.3 6.6 304, 304L, 316, 316L, or 185 RPM 45229 22614 11307 5654 2827 1885 1413 942 707 17-4 PH, 15-5, 13-4, ≤ 28 HRc Fz 0.00002 0.00004 0.00008 0.0002 0.0005 0.0009 0.0012 0.0014 0.0017 Custom 450 Slot 2 1 ≤1 (148-222) Feed 1.8 1.8 1.8 1.9 2.8 3.4 3.4 2.6 2.4 3 1 ≤ 0.5 (ipm) 2.7 2.7 2.7 2.9 4.2 5.1 5.1 4.0 3.6 4 1 ≤ 0.4 3.6 3.6 3.6 3.8 5.7 6.8 6.8 5.3 4.8 continued on next page 198 END MILLS wwwE.kNyDoMceILraLS-sgstool.com