FRACTIONAL Power-Carb Ap Series Diameter (D1) Ae Ae (inch) 57 Vc Fractional Hardness Ae x D1 Ap x D1 (sfm) 1/4 5/16 3/8 1/2 215 RPM 3285 2628 2190 1643 Slot 1 ≤ 0.3 Fz 0.0013 0.0019 0.0025 0.0031 (172-258) Feed (ipm) 26 30 33 31 TOOL STEELS 265 RPM 4049 3239 2699 2025 MOLD AND DIE STEEL ≤ 420 Bhn Profile 300M, 4340, 52100, or ≤ 0.1 ≤ 1.5 Fz 0.0018 0.0026 0.0035 0.0044 HP-9-4-20, M50, A2, ≤ 45 HRc (212-318) D2, H13, L2, M2, P20, Feed (ipm) 44 51 57 53 S7, T15, W2 560 RPM 8557 6845 5705 4278 HSM ≤ 0.04 ≤ 1.5 Fz 0.0022 0.0033 0.0044 0.0055 (448-672) Feed (ipm) 113 136 151 141 120 RPM 1834 1467 1222 917 Slot 1 ≤ 0.3 Fz 0.0010 0.0015 0.0020 0.0025 (96-144) Feed (ipm) 11 13 15 14 TOOL STEELS 150 RPM 2292 1834 1528 1146 MOLD AND DIE STEEL ≤ 560 Bhn Profile H 300M, 4340, 52100, or ≤ 0.1 ≤ 1.5 Fz 0.0014 0.0021 0.0028 0.0035 HP-9-4-20, M50, A2, ≤ 55 HRc (120-180) D2, H13, L2, M2, P20, Feed (ipm) 19 23 26 24 S7, T15, W2 490 RPM 7487 5990 4991 3744 HSM ≤ 0.04 ≤ 1.5 Fz 0.0018 0.0026 0.0035 0.0044 (392-588) Feed (ipm) 81 93 105 99 65 RPM 993 795 662 497 Slot 1 ≤ 0.3 Fz 0.0008 0.0011 0.0015 0.0019 (52-78) Feed (ipm) 5 5 6 6 TOOL STEELS 80 RPM 1222 978 815 611 MOLD AND DIE STEEL ≤ 740 Bhn Profile 300M, 4340, 52100, or ≤ 0.1 ≤ 1.5 Fz 0.0011 0.0016 0.0021 0.0026 HP-9-4-20, M50, A2, ≤ 65 HRc (64-96) D2, H13, L2, M2, P20, Feed (ipm) 8 9 10 10 S7, T15, W2 250 RPM 3820 3056 2547 1910 HSM ≤ 0.04 ≤ 1.5 Fz 0.0013 0.0019 0.0025 0.0031 (200-300) Feed (ipm) 30 35 38 36 Bhn (Brinell) HRc (Rockwell C) HSM (High Speed Machining) rpm = Vc x 3.82 / D1 ipm = Fz x 6 x rpm reduce speed and feed for materials harder than listed reduce feed and Ae when finish milling (.02 x D1 maximum) refer to the KYOCERA SGS Tool Wizard® for complete technical information (www.kyocera-sgstool.com) www.kyocerEaN-DsgMstILoLoSl.com END MILLS 109