b'METRICSeries M814 8xDVc DCmmSeries M814 8xD Hardness (m/min) 1 2 3 4RPM 39746 19873 13249 9937CARBON STEELS175 Bhn 1251018, 1040, 1080, 1090, 10L50, or (100-150) Fz 0.0229 0.0458 0.0686 0.09151140, 1212, 12L15, 1525, 15367 HRcFeed (mm/min) 909 909 909 909PRPM 30052 15026 10017 7513ALLOY STEELS275 Bhn 944140, 4150, 4320, 5120, or (76-113) Fz 0.0216 0.0431 0.0647 0.08625150, 8630, 86L20, 5010028 HRcFeed (mm/min) 648 648 648 648RPM 14541 7271 4847 3635TOOL STEELS475 Bhn 46H A2, D2, H13, L2, M2, or (37-55) Fz 0.0101 0.0203 0.0304 0.0405P20, S7, T15, W250 HRcFeed (mm/min) 147 147 147 147RPM 34899 17449 11633 8725CAST IRONS220 Bhn 110 K Gray, Malleable, Ductile or (88-132) Fz 0.0318 0.0636 0.0954 0.127219 HRcFeed (mm/min) 1110 1110 1110 1110RPM 17449 8725 5816 4362STAINLESS STEELS275 Bhn 55(FREE MACHINING) or (44-66) Fz 0.0178 0.0355 0.0533 0.0710303, 416, 420F, 430F, 440F 28 HRcFeed (mm/min) 310 310 310 310MSTAINLESS STEELS RPM 12118 6059 4039 3029(DIFFICULT)325 Bhn 38304, 316, 321, 13-8 PH, 15-5PH, or (30-46) Fz 0.0140 0.0281 0.0421 0.056217-4 PH, CUSTOM 45035 HRcFeed (mm/min) 170 170 170 170SUPER ALLOYS RPM 8725 4362 2908 2181(NICKEL, COBALT, IRON BASE)320 Bhn 27Inconel 601, 617, 625, Incoloy 800,or (22-33) Fz 0.0096 0.0192 0.0288 0.0384Monel 400, Rene, Waspaloy 34 HRcFeed (mm/min) 84 84 84 84STITANIUM ALLOYS RPM 14541 7271 4847 3635Pure Titanium, Ti6Al4V,350 Bhn 46Ti6Al2Sn4Zr2Mo, or (37-55) Fz 0.0093 0.0185 0.0278 0.0370Ti4Al4Mo2Sn0.5Si 38 HRcFeed (mm/min) 135 135 135 135RPM 41200 20600 13733 10300ALUMINUM ALLOYS150 Bhn 1302017, 2024, 356, 6061, 7075 or (104-155) Fz 0.0395 0.0789 0.1184 0.1578 7 HRcFeed (mm/min) 1626 1626 1626 1626NRPM 31506 15753 10502 7877COPPER ALLOYS140 Bhn 99Alum Bronze, C110, Muntz Brass or (79-119) Fz 0.0407 0.0814 0.1221 0.1629 3 HRcFeed (mm/min) 1283 1283 1283 1283Note: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 information136 DRILLS DRILLSwww.sgsmicrotools.com'