Specialty Tools Performance Series Drills Speeds and Feeds Performance Series 1000 and 1002 (2 Flute) Workpiece Material BHN Coolant Type Cutting Speed (sfm) Feed in Inches per Revolution for Drill Diameter 0.187 (3 mm) 0.250 (6 mm) 0.375 (10 mm) 0.500 (13 mm) 0.625 (16 mm) 0.750+ (19 mm) Steel - Carbon / Alloy Steels <220 E/D 250-525 .003-.005 .004-.007 .006-.010 .007-.013 .009-.015 .010-.018 150-375 E/D 250-425 .003-.005 .004-.007 .005-.006 .005-.007 .006-.008 .006-.008 350-425 E/D 190-220 .002-.004 .002-.004 .003-.004 .003-.005 .004-.006 .005-.008 Nodular Iron:   Ferritic <220 E/D 200-265 .003-.005 .004-.006 .005-.008 .007-.010 .008-.015 .010-.018 >220 E/S 130-225 .002-.004 .004-.006 .004-.006 .005-.008 .007-.012 .010-.015 Stainless Free Machining:   405, 409, 429, 430, 442 <250 E/D 300-500 .002-.004 .003-.005 .004-.006 -.005-.008 .006-.008 .006-.010 Austenite:   200, 300, 500 135-275 E 250-350 .003-.005 .004-.006 .005-.008 .005-.008 -.005-.008 .006-.010 Austenite: Nitronic 20, 30, 40, 50, 60 215-250 E 150-200 .002-.004 .003-.005 .004-.006 .004-.007 .006-.008 .006-.010 325-390   75-120 .002-.004 .003-.005 .004-.005 .003-.006 .004-.006 .006-.010 Martensitic: 400 Series 135-300 E 300-400 .003-.005 .004-.006 .004-.006 .005-.008 .006-.010 -.006-.010 300-425 E 190-250 .002-.004 .002-.004 .003-.004 .003-.006 .004-.005 .004-.006 Performance Series 2000 and 2002 (3 Flute) Workpiece Material BHN Coolant Type Cutting Speed (sfm) Feed in Inches per Revolution for Drill Diameter 0.187 (3 mm) 0.250 (6 mm) 0.375 (10 mm) 0.500 (13 mm) 0.625 (16 mm) 0.750+ (19 mm) Gray Cast Iron 180- E/D 400-600 .005-.008 .007-.010 .009-.015 .011-.019 .014-.024 .016-.027 180-220 E/D 325-450 .005-.008 .007-.011 .009-.015 .011-.019 .014-.024 .016-.027 220+ E/D 190-360 .004-.007 .006-.009 .007-.012 .010-.016 .012-.020 .015-.025 Nodular Iron:   Ferritic <220 E/D 200-265 .005-.008 .006-.010 .008-.012 .010-.016 .012-.020 .014-.024 >220 E/S 130-200 .004-.006 .005-.008 .006-.010 .008-.013 .010-.018 .016-.022 Aluminum Alloys - Wrought   E 500-2500 .004-.006 .007-.011 .010-.016 .013-.021 .016-.028 .018-.030 Aluminum: < 10%   E 500-2500 .004-.007 .007-.011 .010-.016 .013-.022 .016-.027 .020-.032 Aluminum:   > 10%   E 325-1000 .004-.006 .007-.011 .009-.015 .012-.020 .015-.025 .018-030 Copper Alloys   E 350-1000 .007-.011 .009-.015 .011-.018 .013-.022 .014-.024 .015-.026 Magnesium Alloys   E 525-650 .004-.006 .006-.010 .008-.012 .009-.015 .010-.017 .012-.020 Titanium and Alloys   E 85-165 .001-.002 .002-.003 .003-.005 .015-.025 .006-.010 .008-.014 SFM / RPM Conversion Chart Dia sfm 3/16 rpm 7/32 rpm 1/4 rpm 5/16 rpm 3/8 rpm 7/16 rpm 1/2 rpm 5/8 rpm 3/4 rpm 7/8 rpm 1 rpm 50 1,020 875 765 610 510 440 380 310 250 220 190 75 1,530 1,310 1,150 920 760 660 570 460 380 330 285 100 2,040 1,750 1,530 1,220 1,020 870 760 610 510 440 385 125 2,550 2,180 1,920 1,530 1,270 1,100 950 770 630 550 475 150 3,060 2,620 2,290 1,830 1,530 1,310 1,140 920 760 660 575 175 3,570 3,060 2,680 2,140 1,780 1,540 1,330 1,080 880 770 665 200 4,070 3,500 3,100 2,450 2,000 1,750 1,500 1,200 1,000 875 750 300 6,100 5,250 4,600 3,700 3,100 2,600 2,300 1,800 1,500 1,300 1,100 400 8,150 7,000 6,100 4,900 4,100 3,500 3,050 2,450 2,050 1,750 1,525 500 10,200 8,700 7,600 6,100 5,100 4,400 3,800 3,100 2,500 2,200 1,900 750 15,300 13,100 11,500 9,200 7,600 6,550 5,700 4,600 3,800 3,770 2,850 1000 20,400 17,500 15,300 12,200 10,200 8,750 7,650 6,100 5,100 4,400 3,800 1500 30,600 26,200 22,900 18,300 15,300 13,150 11,300 9,200 7,600 6,500 5,700 2000 40,800 35,000 30,600 24,400 20,400 17,500 15,300 12,200 10,200 8,700 7,600 3000 61,200 52,500 45,900 36,600 30,600 26,250 22,900 18,300 15,300 13,100 11,400   Formula for sizes not shown: sfm =  rpm x diameter x .262 rpm = sfm   diameter x .262

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