METRIC Series M226 • L226 DC • mm Vc Series M226 • L226 Hardness (m/min) 0.04 0.25 0.5 1 2 3 RPM 315060 50410 25205 12602 6301 4201 CARBON STEELS ≤ 175 Bhn 40 1018, 1040, 1080, 1090, 10L50, or Fz 0.001 0.007 0.014 0.029 0.058 0.086 (32-48) 1140, 1212, 12L15, 1525, 1536 ≤ 7 HRc Feed (mm/min) 363 363 363 363 363 363 P RPM 472590 75614 37807 18904 9452 6301 ALLOY STEELS ≤ 275 Bhn 59 4140, 4150, 4320, 5120, or Fz 0.001 0.007 0.013 0.026 0.052 0.078 (48-71) 5150, 8630, 86L20, 50100 ≤ 28 HRc Feed (mm/min) 493 493 493 493 493 493 RPM 193883 31021 15511 7755 3878 2585 TOOL STEELS ≤ 475 Bhn 24 H A2, D2, H13, L2, M2, or Fz 0.001 0.003 0.007 0.013 0.026 0.039 (20-29) P20, S7, T15, W2 ≤ 50 HRc Feed (mm/min) 102 102 102 102 102 102 RPM 678591 108575 54287 27144 13572 9048 ≤ 220 Bhn CAST IRONS 85 K or Fz 0.001 0.004 0.008 0.016 0.033 0.049 Gray, Malleable, Ductile (68-102) ≤ 19 HRc Feed (mm/min) 445 445 445 445 445 445 RPM 157530 25205 12602 6301 3151 2100 STAINLESS STEELS ≤ 275 Bhn 20 (FREE MACHINING) or Fz 0.001 0.005 0.011 0.022 0.044 0.065 (16-24) 303, 416, 420F, 430F, 440F ≤ 28 HRc Feed (mm/min) 137 137 137 137 137 137 M STAINLESS STEELS RPM 96942 15511 7755 3878 1939 1293 ≤ 325 Bhn (DIFFICULT) 12 or Fz 0.001 0.004 0.009 0.018 0.035 0.053 304, 316, 321, 13-8 PH, 15-5PH, (10-15) ≤ 35 HRc 17-4 PH, CUSTOM 450 Feed (mm/min) 69 69 69 69 69 69 SUPER ALLOYS RPM 121177 19388 9694 4847 2424 1616 (NICKEL, COBALT, IRON BASE) ≤ 320 Bhn 15 Inconel 601, 617, 625, Incoloy or Fz 0.000 0.003 0.006 0.011 0.022 0.033 (12-18) 800, Monel 400, Rene, ≤ 34 HRc Waspaloy Feed (mm/min) 53 53 53 53 53 53 S TITANIUM ALLOYS RPM 121177 19388 9694 4847 2424 1616 ≤ 350 Bhn Pure Titanium, Ti6Al4V, 15 or Fz 0.001 0.004 0.008 0.017 0.034 0.051 Ti6Al2Sn4Zr2Mo, (12-18) ≤ 38 HRc Ti4Al4Mo2Sn0.5Si Feed (mm/min) 82 82 82 82 82 82 RPM 593768 95003 47501 23751 11875 7917 ≤ 150 Bhn ALUMINUM ALLOYS 75 or Fz 0.002 0.012 0.025 0.049 0.099 0.148 2017, 2024, 356, 6061, 7075 (60-90) ≤ 7 HRc Feed (mm/min) 1171 1171 1171 1171 1171 1171 RPM 436237 69798 34899 17449 8725 5816 COPPER ALLOYS ≤ 140 Bhn 55 N Alum Bronze, C110, Muntz or Fz 0.002 0.012 0.025 0.049 0.099 0.148 (44-66) Brass ≤ 3 HRc Feed (mm/min) 861 861 861 861 861 861 RPM 593768 95003 47501 23751 11875 7917 PLASTICS 75 Fz 0.002 0.012 0.025 0.049 0.099 0.148 Polycarbonate, PVC (60-90) Feed (mm/min) 1171 1171 1171 1171 1171 1171 Note: • Bhn (Brinell)   HRc (Rockwell C)   HRb (Rockwell B) • rpm = Vc x 3.82 / DC • ipm = 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 133 DRILLS www.sgsmicrotools.com DRILLS