FRACTIONAL 2 Flute Drills Series Diameter (D1) 101 Vc (inch) Fractional Hardness (sfm) 1/64 1/32 1/16 1/8 1/4 3/8 1/2 ≤ 220 Bhn 40 RPM 9779 4890 2445 1222 611 407 306 or (32-48) Fr 0.00010 0.0002 0.0004 0.0008 0.0016 0.0025 0.0033 ≤ 19 HRc Feed (ipm) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 SUPER ALLOYS 25 RPM 6112 3056 1528 764 382 255 191 (NICKEL, COBALT, ≤ 320 Bhn IRON BASE) or Fr 0.00010 0.0002 0.0004 0.0008 0.0016 0.0024 0.0031 Inconel 601, 617, 625, ≤ 34 HRc (20-30) Incoloy 800, Monel 400, Feed (ipm) 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Rene, Waspaloy 20 RPM 4890 2445 1222 611 306 204 153 ≤ 425 Bhn or (16-24) Fr 0.00004 0.0001 0.0002 0.0003 0.0007 0.0010 0.0013 ≤ 45 HRc Feed (ipm) 0.2 0.2 0.2 0.2 0.2 0.2 0.2 S 85 RPM 20781 10390 5195 2598 1299 866 649 ≤ 275 Bhn or (68-102) Fr 0.00020 0.0004 0.0008 0.0016 0.0032 0.0049 0.0065 ≤ 28 HRc Feed (ipm) 4.2 4.2 4.2 4.2 4.2 4.2 4.2 TITANIUM ALLOYS 65 RPM 15891 7946 3973 1986 993 662 497 (DIFFICULT) ≤ 350 Bhn Pure Titanium, Ti6Al4V, or Fr 0.00011 0.0002 0.0004 0.0009 0.0017 0.0026 0.0034 Ti6Al2Sn4Zr2Mo, ≤ 38 HRc (52-78) Ti4Al4Mo2Sn0.5Si, Feed (ipm) 1.7 1.7 1.7 1.7 1.7 1.7 1.7 Ti-6Al4V 55 RPM 13446 6723 3362 1681 840 560 420 ≤ 440 Bhn or (44-66) Fr 0.00010 0.0002 0.0004 0.0008 0.0015 0.0023 0.0031 ≤ 47 HRc Feed (ipm) 1.3 1.3 1.3 1.3 1.3 1.3 1.3 ≤ 80 Bhn 540 RPM 132019 66010 33005 16502 8251 5501 4126 or (432-648) Fr 0.00030 0.0006 0.0012 0.0024 0.0048 0.0073 0.0097 ALUMINUM ALLOYS ≤ 47 HRb Feed (ipm) 40.0 40.0 40.0 40.0 40.0 40.0 40.0 2017, 2024, 356, 455 RPM 111238 55619 27810 13905 6952 4635 3476 6061, 7075 ≤ 150 Bhn or (364-546) Fr 0.00031 0.0006 0.0013 0.0025 0.0050 0.0076 0.0101 ≤ 7 HRc Feed (ipm) 35.0 35.0 35.0 35.0 35.0 35.0 35.0 ≤ 140 Bhn 190 RPM 46451 23226 11613 5806 2903 1935 1452 N or (152-228) Fr 0.00015 0.0003 0.0006 0.0012 0.0024 0.0036 0.0048 COPPER ALLOYS ≤ 3 HRc Feed (ipm) 7.0 7.0 7.0 7.0 7.0 7.0 7.0 Alum Bronze, C110, 175 RPM 42784 21392 10696 5348 2674 1783 1337 Muntz Brass ≤ 200 Bhn or (140-210) Fr 0.00015 0.0003 0.0006 0.0012 0.0024 0.0036 0.0048 ≤ 23 HRc Feed (ipm) 6.4 6.4 6.4 6.4 6.4 6.4 6.4 500 RPM 122240 61120 30560 15280 7640 5093 3820 PLASTICS Fr 0.00031 0.0006 0.0012 0.0025 0.0050 0.0075 0.0099 Polycarbonate, PVC (400-600) Feed (ipm) 38.0 38.0 38.0 38.0 38.0 38.0 38.0 Bhn (Brinell)  HRc (Rockwell C)  HRb (Rockwell B) rpm = Vc x 3.82 / D1 ipm = Fz x rpm reduce speed and feed 30 percent when using uncoated drills reduce speed and feed for materials harder than listed refer to the KYOCERA SGS Tool Wizard® for complete technical information (www.kyocera-sgstool.com) www.kyoceraD-sRgILsLtoSol.com DRILLS 297