Performance Coolant-Through Carbide Drills
List HP253 - HY-PRO® CARB: 3D Coolant-Through List HP255 - HY-PRO® CARB: 5D Coolant-Through List HP258 - HY-PRO® CARB: 8D Coolant-Through
General Drilling Operations
Carbon Steels, Mild Steels 1010, 1050, 12L14
Stainless Steels 300SS, 400SS, 17- 4PH
Work Material
Alloy Steels 4140, 4130
Cast Iron
Ductile Cast Iron Aluminum Alloy
Drilling Speed 310-455 SFM 265-380 SFM 145-220 SFM 285-420 SFM 215-350 SFM 260-450 SFM Drill Dia. Speed RPM Feed IPR Speed RPM Feed IPR Speed RPM Feed IPR Speed RPM Feed IPR Speed RPM Feed IPR Speed RPM Feed IPR mm Inch 3 - 12,370 0.002-0.005 10,430 0.002-0.005 5,900 0.002-0.004 11,400 0.002-0.005 9,140 0.002-0.005 11,480 0.003-0.005 - 1/8 11,690 0.002-0.005 9,860 0.002-0.005 5,580 0.002-0.004 10,770 0.002-0.005 8,630 0.002-0.005 10,850 0.003-0.005 4 - 9,280 0.003-0.006 7,820 0.003-0.006 4,430 0.003-0.005 8,550 0.003-0.006 6,850 0.003-0.006 8,610 0.004-0.006 - 3/16 7,790 0.004-0.007 6,570 0.004-0.007 3,720 0.004-0.006 7,180 0.004-0.007 5,760 0.004-0.007 7,230 0.005-0.007 6 - 6,190 0.005-0.009 5,220 0.005-0.009 2,950 0.005-0.007 5,700 0.005-0.009 4,570 0.005-0.009 5,740 0.006-0.008 - 1/4 5,840 0.005-0.010 4,930 0.005-0.010 2,790 0.006-0.008 5,390 0.005-0.010 4,320 0.005-0.010 5,420 0.007-0.009 8 - 4,640 0.006-0.011 3,910 0.006-0.011 2,210 0.006-0.009 4,280 0.006-0.011 3,430 0.006-0.011 4,310 0.008-0.010 - 3/8 3,900 0.007-0.011 3,290 0.007-0.011 1,860 0.007-0.009 3,590 0.007-0.011 2,880 0.007-0.011 3,620 0.009-0.011 10 - 3,710 0.008-0.012 3,130 0.008-0.012 1,770 0.008-0.010 3,420 0.008-0.012 2,740 0.008-0.012 3,440 0.011-0.013 - 7/16 3,340 0.008-0.012 2,820 0.008-0.012 1,590 0.008-0.010 3,080 0.008-0.012 2,470 0.008-0.012 3,100 0.012-0.014 12 - 3,090 0.008-0.012 2,610 0.008-0.012 1,480 0.008-0.010 2,850 0.008-0.012 2,280 0.008-0.012 2,870 0.013-0.015 - 1/2 2,920 0.008-0.013 2,460 0.008-0.013 1,390 0.008-0.010 2,690 0.008-0.013 2,160 0.008-0.013 2,710 0.014-0.016 14 - 2,650 0.009-0.014 2,240 0.009-0.014 1,260 0.009-0.011 2,440 0.009-0.014 1,960 0.009-0.014 2,460 0.016-0.018 - 5/8 2,340 0.010-0.014 1,970 0.010-0.014 1,120 0.010-0.012 2,150 0.010-0.014 1,730 0.010-0.014 2,170 0.018-0.020 16 – 2,340 0.010-0.014 1,970 0.010-0.014 1,120 0.010-0.012 2,150 0.010-0.014 1,730 0.010-0.014 2,170 0.018-0.020 18 - 2,060 0.011-0.015 1,740 0.011-0.015 980 0.011-0.013 1,900 0.011-0.015 1,520 0.011-0.015 1,910 0.020-0.022 - 3/4 1,950 0.011-0.015 1,640 0.011-0.015 930 0.011-0.013 1,800 0.011-0.015 1,440 0.011-0.015 1,810 0.021-0.023 20 - 1,860 0.012-0.016 1,560 0.012-0.016 890 0.012-0.014 1,710 0.012-0.016 1,370 0.012-0.016 1,720 0.022-0.024
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Drilling Technical
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