METRIC Series M081 DC • mm Vc Series M081 Hardness (m/min) 0.15 0.25 0.5 1 2 3 RPM 180958 108575 54287 27144 13572 9048 CARBON STEELS ≤ 175 Bhn1018, 1040, 1080, 1090, 10L50,or1140, 1212, 12L15, 1525, 1536≤ 7 HRc85(68-102)Fz0.00310.00510.01030.02060.04120.0618 Feed (mm/min) 559 559 559 559 559 559 P RPM 116330 69798 34899 17449 8725 5816 ALLOY STEELS4140, 4150, 4320, 5120,5150, 8630, 86L20, 50100≤ 275 Bhnor≤ 28 HRc55(44-66)Fz0.00290.0048 0.0097 0.0194 0.0387 0.0581 Feed (mm/min) 338 338 338 338 338 338 RPM 45239 27144 13572 6786 3393 2262 TOOL STEELSHA2, D2, H13, L2, M2,P20, S7, T15, W2≤ 475 Bhnor≤ 50 HRc21(17-26)Fz 0.0012 0.0020 0.0039 0.0079 0.0157 0.0236 Feed (mm/min) 53 53 53 53 53 53 RPM 180958 108575 54287 27144 13572 9048 K CAST IRONSGray, Malleable, Ductile ≤ 220 Bhnor≤ 19 HRc85(68-102) Fz 0.0022 0.0037 0.0074 0.0148 0.0296 0.0444 Feed (mm/min) 401 401 401 401 401 401 RPM 135718 81431 40715 20358 10179 6786 STAINLESS STEELS(FREE MACHINING)303, 416, 420F, 430F, 440F≤ 250 Bhnor≤ 24 HRc64(51-77)Fz0.00320.0053 0.0106 0.0212 0.0424 0.0636 Feed (mm/min) 432 432 432 432 432 432 M STAINLESS STEELS(DIFFICULT)304, 316, 321, 13-8 PH, 15-5PH,17-4 PH, CUSTOM 450≤ 275 Bhnor≤ 28 HRcRPM11633055(44-66)Fz0.0029Feed (mm/min)338697980.0048338348990.0097338174490.019433887250.038733858160.0581338 SUPER ALLOYS RPM 45239 27144 13572 6786 3393 2262 (NICKEL, COBALT, IRON BASE) ≤ 320 BhnInconel 601, 617, 625, Incoloyor800, Monel 400, Rene,≤ 34 HRc21(17-26)Fz0.00180.00300.00600.01200.02400.0359 Waspaloy Feed (mm/min) 81 81 81 81 81 81 S TITANIUM ALLOYSPure Titanium, Ti6Al4V,Ti6Al2Sn4Zr2Mo,Ti4Al4Mo2Sn0.5SiRPM 77553 46532 23266 11633 5816 3878≤ 350 Bhnor≤ 38 HRc37(29-44)Fz0.00180.00310.00610.01220.02450.0367Feed (mm/min)142142142142142142 RPM 387767 232660 116330 58165 29082 19388 ALUMINUM ALLOYS2017, 2024, 356, 6061, 7075≤ 150 Bhnor≤ 7 HRc183(146-219)Fz 0.0035 0.0059 0.0118 0.0236 0.0472 0.0707 Feed (mm/min) 1372 1372 1372 1372 1372 1372 RPM 122793 73676 36838 18419 9209 6140 COPPER ALLOYSNAlum Bronze, C110, MuntzBrass≤ 140 Bhnor≤ 3 HRc58(46-69)Fz 0.0029 0.0049 0.0097 0.0194 0.0389 0.0583 Feed (mm/min) 358 358 358 358 358 358 RPM 323139 193883 96942 48471 24235 16157 PLASTICSPolycarbonate, PVC 152(122-183) Fz 0.0035 0.0059 0.0118 0.0236 0.0472 0.0707 Feed (mm/min) 1143 1143 1143 1143 1143 1143 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 110 DRILLS wwwD.sRgILsLmSicrotools.com