METRIC Series M814 15xD DC • mm Vc Series M814 15xD Hardness (m/min) 1 2 3 4 RPM 39746 19873 13249 9937 CARBON STEELS ≤ 175 Bhn 125 1018, 1040, 1080, 1090, 10L50, or Fz 0.0160 0.0320 0.0479 0.0639 (100-150) 1140, 1212, 12L15, 1525, 1536 ≤ 7 HRc Feed (mm/min) 635 635 635 635 P RPM 30052 15026 10017 7513 ALLOY STEELS ≤ 275 Bhn 94 4140, 4150, 4320, 5120, or Fz 0.0139 0.0279 0.0418 0.0558 (76-113) 5150, 8630, 86L20, 50100 ≤ 28 HRc Feed (mm/min) 419 419 419 419 RPM 14541 7271 4847 3635 TOOL STEELS ≤ 475 Bhn 46 H A2, D2, H13, L2, M2, or Fz 0.0070 0.0140 0.0210 0.0279 (37-55) P20, S7, T15, W2 ≤ 50 HRc Feed (mm/min) 102 102 102 102 RPM 34899 17449 11633 8725 ≤ 220 Bhn CAST IRONS 110 K or Fz 0.0229 0.0459 0.0688 0.0917 Gray, Malleable, Ductile (68-132) ≤ 19 HRc Feed (mm/min) 800 800 800 800 RPM 17449 8725 5816 4362 STAINLESS STEELS ≤ 275 Bhn 55 (FREE MACHINING) or Fz 0.0127 0.0253 0.0380 0.0507 (44-66) 303, 416, 420F, 430F, 440F ≤ 28 HRc Feed (mm/min) 221 221 221 221 M STAINLESS STEELS RPM 12118 6059 4039 3029 ≤ 325 Bhn (DIFFICULT) 38 or Fz 0.0094 0.0189 0.0283 0.0377 304, 316, 321, 13-8 PH, 15-5PH, 17-4 (30-46) ≤ 35 HRc PH, CUSTOM 450 Feed (mm/min) 114 114 114 114 SUPER ALLOYS RPM 8725 4362 2908 2181 ≤ 320 Bhn (NICKEL, COBALT, IRON BASE) 27 or Fz 0.0064 0.0128 0.0192 0.0256 Inconel 601, 617, 625, Incoloy 800, (22-33) ≤ 34 HRc Monel 400, Rene, Waspaloy Feed (mm/min) 56 56 56 56 S TITANIUM ALLOYS RPM 14541 7271 4847 3635 ≤ 350 Bhn Pure Titanium, Ti6Al4V, 46 or Fz 0.0077 0.0154 0.0231 0.0307 Ti6Al2Sn4Zr2Mo, (37-55) ≤ 38 HRc Ti4Al4Mo2Sn0.5Si Feed (mm/min) 112 112 112 112 RPM 41200 20600 13733 10300 ≤ 150 Bhn ALUMINUM ALLOYS 130 or Fz 0.0287 0.0573 0.0860 0.1147 2017, 2024, 356, 6061, 7075 (104-155) ≤ 7 HRc Feed (mm/min) 1181 1181 1181 1181 N RPM 31506 15753 10502 7877 ≤ 140 Bhn COPPER ALLOYS 99 or Fz 0.0286 0.0572 0.0859 0.1145 Alum Bronze, C110, Muntz Brass (79-119) ≤ 3 HRc Feed (mm/min) 902 902 902 902 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 137 DRILLS www.sgsmicrotools.com DRILLS