METRIC Combined Drill & Countersink Series DC • mm 301M Vc Metric Hardness (m/min) 1 1.6 2.5 4 5 165 RPM 16619 13087 8309 5235 4188 ≤ 80 Bhn or Fr 0.025 0.032 0.050 0.079 0.099 ALUMINUM ALLOYS ≤ 47 HRb (132-198) Feed (mm/min) 415 415 415 415 415 2017, 2024, 356, 6061, 7075 139 RPM 14003 11027 7001 4411 3529≤ 150 Bhn or Fr 0.025 0.032 0.050 0.079 0.099 ≤ 7 HRc (111-166) Feed (mm/min) 350 350 350 350 350 58 RPM 5847 4605 2924 1842 1474 ≤ 140 Bhn N or Fr 0.012 0.015 0.024 0.038 0.048 COPPER ALLOYS ≤ 3 HRc (46-69) Feed (mm/min) 70 70 70 70 70 Alum Bronze, C110, Muntz Brass 53 RPM 5386 4241 2693 1696 1357≤ 200 Bhn or Fr 0.012 0.015 0.024 0.038 0.048 ≤ 23 HRc (43-64) Feed (mm/min) 65 65 65 65 65 152 RPM 15388 12118 7694 4847 3878 PLASTICSPolycarbonate, PVC Fr 0.025 0.032 0.050 0.079 0.099(122-183) Feed (mm/min) 385 385 385 385 385 12 RPM 1231 969 616 388 310 ≤ 220 Bhn or Fr 0.009 0.011 0.018 0.028 0.035 ≤ 19 HRc (10-15) Feed (mm/min) 11 11 11 11 11 SUPER ALLOYS (NICKEL, COBALT,IRON BASE)Inconel 601, 617, 625,Incoloy 800, Monel 400,≤ 320 Bhnor≤ 34 HRc8RPM769Fr0.008(6-9)Feed (mm/min)66060.01063850.01662420.02561940.0316 Rene, Waspaloy ≤ 425 Bhn 6 RPM 616 485 308 194 155 or Fr 0.003 0.004 0.006 0.010 0.013 ≤ 45 HRc (5-7) Feed (mm/min) 2 2 2 2 2 S 26 RPM 2616 2060 1308 824 659 ≤ 275 Bhn or Fr 0.016 0.020 0.032 0.051 0.064 ≤ 28 HRc (21-31) Feed (mm/min) 42 42 42 42 42 TITANIUM ALLOYSPure Titanium, Ti6Al4V,≤ 350 Bhn 20 RPM 2000 1575 1000 630 504 Ti6Al2Sn4Zr2Mo, or Fr 0.009 0.011 0.018 0.029 0.036 Ti4Al4Mo2Sn0.5Si, ≤ 38 HRc (16-24) Ti-6Al4V Feed (mm/min) 18 18 18 18 18 17 RPM 1693 1333 846 533 427 ≤ 440 Bhn or Fr 0.008 0.011 0.017 0.026 0.033 ≤ 47 HRc (13-20) Feed (mm/min) 14 14 14 14 14 ≤ 250 Bhn 26 RPM 2616 2060 1308 824 659 or Fr 0.009 0.012 0.018 0.029 0.036 ≤ 24 HRc (21-31) Feed (mm/min) 24 24 24 24 24 17 RPM 1693 1333 846 533 427 TOOL STEELS ≤ 375 Bhn H A2, D2, H13, L2, M2, or Fr 0.004 0.005 0.008 0.013 0.016 P20, S7, T15, W2 ≤ 40 HRc (13-20) Feed (mm/min) 7 7 7 7 7 ≤ 475 Bhn 12 RPM 1231 969 616 388 310 or Fr 0.004 0.005 0.008 0.013 0.016 ≤ 50 HRc (10-15) Feed (mm/min) 5 5 5 5 5 Bhn (Brinell)  HRc (Rockwell C)  HRb (Rockwell B) rpm = (Vc x 1000) / (DCON x 3.14) mm/min = Fr x rpm reduce speed and feed 30 percent when using uncoated drills reduce speed and feed for materials harder than listed refer to the SGS Tool Wizard® for complete technical information (www.kyocera-sgstool.com) www.kyoceraD-sRgILsLtoSol.com DRILLS 315