METRIC Series M814 8xD DC • mm Vc Series M814 8xD Hardness (m/min) 1 2 3 4 RPM 39746 19873 13249 9937 CARBON STEELS1018, 1040, 1080, 1090, 10L50,1140, 1212, 12L15, 1525, 1536≤ 175 Bhnor≤ 7 HRc125(100-150)Fz0.0229 0.0458 0.0686 0.0915 Feed (mm/min) 909 909 909 909 P RPM 30052 15026 10017 7513 ALLOY STEELS4140, 4150, 4320, 5120,5150, 8630, 86L20, 50100≤ 275 Bhnor≤ 28 HRc94(76-113)Fz 0.0216 0.0431 0.0647 0.0862 Feed (mm/min) 648 648 648 648 RPM 14541 7271 4847 3635 TOOL STEELSHA2, D2, H13, L2, M2,P20, S7, T15, W2≤ 475 Bhnor≤ 50 HRc46(37-55) Fz 0.0101 0.0203 0.0304 0.0405 Feed (mm/min) 147 147 147 147 RPM 34899 17449 11633 8725 K CAST IRONSGray, Malleable, Ductile ≤ 220 Bhnor≤ 19 HRc 110(88-132) Fz 0.0318 0.0636 0.0954 0.1272 Feed (mm/min) 1110 1110 1110 1110 RPM 17449 8725 5816 4362 STAINLESS STEELS(FREE MACHINING)303, 416, 420F, 430F, 440F≤ 275 Bhnor≤ 28 HRc55(44-66)Fz 0.0178 0.0355 0.0533 0.0710 Feed (mm/min) 310 310 310 310 M STAINLESS STEELS(DIFFICULT)304, 316, 321, 13-8 PH, 15-5PH,17-4 PH, CUSTOM 450≤ 325 Bhnor≤ 35 HRcRPM1211838(30-46)Fz0.0140Feed (mm/min)17060590.028117040390.042117030290.0562170 SUPER ALLOYS(NICKEL, COBALT, IRON BASE)Inconel 601, 617, 625, Incoloy 800,Monel 400, Rene, Waspaloy≤ 320 Bhnor≤ 34 HRcRPM872527(22-33)Fz0.0096Feed (mm/min)8443620.01928429080.02888421810.038484 S TITANIUM ALLOYSPure Titanium, Ti6Al4V,Ti6Al2Sn4Zr2Mo,Ti4Al4Mo2Sn0.5Si RPM 14541 7271 4847 3635≤ 350 Bhnor≤ 38 HRc46(37-55)Fz0.00930.01850.02780.0370Feed (mm/min)135135135135 RPM 41200 20600 13733 10300 ALUMINUM ALLOYS2017, 2024, 356, 6061, 7075≤ 150 Bhnor≤ 7 HRc 130(104-155) Fz 0.0395 0.0789 0.1184 0.1578 Feed (mm/min) 1626 1626 1626 1626 N RPM 31506 15753 10502 7877 COPPER ALLOYSAlum Bronze, C110, Muntz Brass≤ 140 Bhnor≤ 3 HRc 99(79-119) Fz 0.0407 0.0814 0.1221 0.1629 Feed (mm/min) 1283 1283 1283 1283 Note: • Bhn (Brinell) HRc (Rockwell C) HRb (Rockwell B) • rpm = (Vc x 1000) / (DC x 3.14) • mm/min = Fr x rpm (Fr x maximum available rpm when recommendation exceeds machine limit) • reduce speed and feed 30% when using uncoated drills • reduce speed and feed for materials harder than listed • refer to the KYOCERA SGS Tool Wizard® or sgsmicrotools.com for complete technical information 136 DRILLS wwwD.sRgILsLmSicrotools.com