List 6500 - A Brand ADO: 3D List 6510 - A Brand ADO: 5D List 6520 - A Brand ADO: 8D ADO Advanced Performance Coolant–Through Carbide Drill
General Drilling Operations
High Heat Material Fe-Base Material, A286
Carbon Steels, Mild Steels 1010, 1050, 12L14
Stainless Steels 300SS, 400SS, 17- 4PH
Work Material Drilling Speed Drill Dia.
Alloy Steels 4140, 4130
Ni-Base Material, Inconel
Ti-Alloy, Ti-6Al-4V
260-395 SFM 260-395 SFM 130-230 SFM 100 - 180 SFM 80 - 130 SFM 65 - 110 SFM
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 2 -
15,870 0.002-0.004 15,870 0.002-0.004 8,740 0.002-0.004 6,790 0.002-0.003 5,080 0.001-0.002 4,250 0.001-0.002 - 10,580 0.002-0.005 10,580 0.002-0.005 5,820 0.002-0.005 4,530 0.002-0.003 3,390 0.002-0.002 2,840 0.001-0.002 - 1/8 10,000 0.003-0.005 10,000 0.003-0.005 5,500 0.003-0.005 4,280 0.002-0.004 3,200 0.002-0.003 2,680 0.002-0.002 4 - 7,940 0.003-0.006 7,940 0.003-0.006 4,370 0.003-0.006 3,400 0.002-0.004 2,540 0.002-0.003 2,130 0.002-0.002 - 3/16 6,670 0.004-0.007 6,670 0.004-0.007 3,670 0.004-0.007 2,850 0.003-0.005 2,130 0.003-0.004 1,790 0.002-0.003 6 - 5,290 0.005-0.009 5,290 0.005-0.009 2,910 0.005-0.009 2,269 0.004-0.005 1,690 0.004-0.005 1,420 0.002-0.004 - 1/4 5,000 0.006-0.009 5,000 0.006-0.009 2,750 0.006-0.009 2,140 0.004-0.006 1,600 0.004-0.006 1,340 0.002-0.004 8 - 3,970 0.006-0.011 3,970 0.006-0.011 2,180 0.006-0.011 1,700 0.005-0.007 1,270 0.005-0.006 1,060 0.003-0.005 - 3/8 3,330 0.008-0.012 3,330 0.008-0.012 1,830 0.008-0.012 1,430 0.005-0.008 1,070 0.005-0.007 890 0.004-0.005 10 - 3,170 0.008-0.012 3,170 0.008-0.012 1,750 0.008-0.012 1,360 0.006-0.009 1,020 0.006-0.008 850 0.004-0.006 - 7/16 2,860 0.008-0.012 2,860 0.008-0.012 1,570 0.008-0.012 1,220 0.007-0.010 910 0.007-0.009 770 0.004-0.007 12 - 2,650 0.008-0.012 2,650 0.008-0.012 1,460 0.008-0.012 1,130 0.007-0.011 850 0.007-0.009 710 0.005-0.007 - 1/2 2,500 0.008-0.012 2,500 0.008-0.012 1,380 0.008-0.012 1,070 0.008-0.012 800 0.008-0.010 670 0.005-0.008 14 - 2,270 0.009-0.014 2,270 0.009-0.014 1,250 0.009-0.014 970 0.008-0.013 730 0.008-0.011 610 0.005-0.008 - 5/8 2,000 0.010-0.014 2,000 0.010-0.014 1,100 0.010-0.014 860 0.009-0.013 640 0.006-0.009 540 0.005-0.008 16 – 2,000 0.010-0.014 2,000 0.010-0.014 1,100 0.010-0.014 860 0.009-0.013 640 0.006-0.009 540 0.005-0.008 18 - 1,760 0.011-0.015 1,760 0.011-0.015 1,090 0.011-0.015 750 0.010-0.014 560 0.008-0.011 470 0.005 -0.008 - 3/4 1,670 0.012-0.015 1,670 0.012-0.015 920 0.012-0.015 710 0.011-0.015 530 0.008-0.011 450 0.005-0.008 20 - 1,590 0.012-0.016 1,590 0.012-0.016 870 0.012-0.016 680 0.012-0.016 510 0.008-0.012 420 0.005-0.008 3
General Drilling Operations Work Material Cast Iron
Special Alloy Steels, Hardened Steels
Ductile Cast Iron
Hardness Drilling Speed Drill Dia.
26-30 HRC
30-34 HRC
34-43 HRC
43-48 HRC
260-395 SFM 195-330 SFM 195-295 SFM 130-200 SFM 130-160 SFM 82-115 HRC
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 2 -
15,870 0.002-0.004 12,700 0.002-0.004 11,890 0.002-0.004 8,000 0.002-0.003 7,040 0.002-0.003 4,770 0.001-0.002 - 10,580 0.002-0.005 8,470 0.002-0.005 7,920 0.002-0.005 5,330 0.002-0.003 4,690 0.002-0.003 3,180 0.002-0.002 - 1/8 10,000 0.003-0.005 8,000 0.003-0.005 7,490 0.003-0.005 5,040 0.002-0.004 4,430 0.002-0.004 3,010 0.002-0.003 4 - 7,940 0.003-0.006 6,350 0.003-0.006 5,940 0.003-0.006 4,000 0.003-0.004 3,520 0.003-0.004 2,390 0.002-0.003 - 3/16 6,670 0.004-0.007 5,330 0.004-0.007 4,990 0.004-0.007 3,360 0.003-0.005 2,950 0.003-0.005 2,000 0.003-0.004 6 - 5,290 0.005-0.009 4,230 0.005-0.009 3,960 0.005-0.009 2,700 0.005-0.006 2,340 0.005-0.006 1,590 0.004-0.005 - 1/4 5,000 0.006-0.009 4,000 0.006-0.009 3,740 0.006-0.010 2,520 0.005-0.007 2,220 0.005-0.007 1,500 0.004-0.006 8 - 3,970 0.006-0.011 3,170 0.006-0.011 2,970 0.006-0.011 2,000 0.006-0.008 1,760 0.006-0.008 1,190 0.005-0.007 - 3/8 3,330 0.008-0.012 2,670 0.008-0.012 2,500 0.007-0.012 1,680 0.008-0.009 1,480 0.008-0.009 1,000 0.006-0.008 10 - 3,170 0.008-0.012 2,540 0.008-0.012 2,380 0.008-0.012 1,600 0.008-0.010 1,410 0.008-0.010 950 0.007-0.009 - 7/16 2,860 0.008-0.012 2,290 0.008-0.012 2,140 0.008-0.012 1,440 0.009-0.011 1,270 0.009-0.011 860 0.007-0.009 12 - 2,650 0.008-0.012 2,120 0.008-0.012 1,980 0.008-0.012 1,330 0.009-0.012 1,170 0.009-0.012 800 0.007-0.009 - 1/2 2,500 0.008-0.012 2,000 0.008-0.012 1,870 0.008-0.012 1,260 0.010-0.013 1,110 0.010-0.013 750 0.008-0.010 14 - 2,270 0.009-0.014 1,810 0.009-0.014 1,700 0.009-0.014 1,140 0.011-0.014 1,000 0.011-0.014 680 0.008-0.011 - 5/8 2,000 0.010-0.014 1,600 0.010-0.014 1,500 0.010-0.014 1,010 0.012-0.015 890 0.012-0.015 600 0.009-0.013 16 – 2,000 0.010-0.014 1,600 0.010-0.014 1,500 0.010-0.014 1,010 0.012-0.015 890 0.012-0.015 600 0.009-0.013 18 - 1,760 0.011-0.015 1,410 0.011-0.015 1,320 0.011-0.015 890 0.014-0.018 780 0.014-0.018 530 0.010 -0.014 - 3/4 1,670 0.012-0.015 1,330 0.012-0.015 1,250 0.012-0.015 840 0.015-0.019 740 0.015-0.019 500 0.011-0.015 20 - 1,590 0.012-0.016 1,270 0.012-0.016 1,190 0.012-0.016 800 0.016-0.020 700 0.016-0.020 480 0.012-0.016 3
Note: 1. The indicated speeds and feeds are for drilling with water-soluble oil or MQL . 2. Suitable cutting fluid is water-soluble high density oil (less than 20 times dilution) . 3. When using non-water-soluble oil or water-soluble oil (over 20 times dilution), reduce cutting speed by 30%.
4. These conditions are for drilling depth under 8 times the drill diameter. 5. 1D-2D step feeding may be required for drilling high hardened steels and mid-range (8D) work.
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Drilling Technical
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