NEXUS Vanadium High Speed Steel and OSG’s Proprietary WD1 Nanotechnology Coating List 1150 - NEXUS GDS: Stub List 1650 - NEXUS GDR: Jobbers
General Drilling Operations
Stainless Steels
Low Carbon Steels Mild Steels 1010, 1018
Medium Carbon Steels 1035, 1045
Work Material
Alloy Steels 4140, 4130
Tool Steels D2, H13
Austenitic 304 (Sulfur > 0.02%) 303, 317
Austenitic 304 (Sulfur < 0.02%)
Drilling Speed Drill Dia.
130-195 SFM 80-150 SFM
60-125 SFM
40-80 SFM
40-50 SFM
41-50 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 1 -
15,750 0.001-0.002 11,160 0.001-0.002 8,970 0.001-0.002 5,820 0.001-0.002 4,360 0.0005-0.001 4,410 0.001-0.002 - 1/16 9,920 0.001-0.003 7,000 0.001-0.003 5,650 0.001-0.003 3,650 0.001-0.003 2,750 0.0005-0.001 2,780 0.001-0.002 2 - 7,880 0.002-0.004 5,580 0.002-0.004 4,480 0.002-0.004 2,910 0.002-0.004 2,180 0.001-0.002 2,200 0.002-0.003 - 3/32 6,620 0.003-0.004 4,680 0.003-0.004 3,760 0.003-0.004 2,440 0.003-0.004 1,830 0.001-0.002 1,850 0.002-0.003 3 - 5,250 0.004-0.005 3,720 0.004-0.005 2,990 0.004-0.005 1,940 0.004-0.005 1,450 0.001-0.003 1,470 0.003-0.004 - 1/8 4,960 0.004-0.005 3,500 0.004-0.005 2,820 0.004-0.005 1,830 0.004-0.005 1,370 0.001-0.003 1,390 0.003-0.004 4 - 3,940 0.004-0.006 2,790 0.004-0.006 2,240 0.004-0.006 1,455 0.004-0.006 1,090 0.002-0.003 1,100 0.003-0.005 - 3/16 3,310 0.005-0.007 2,340 0.005-0.007 1,880 0.005-0.007 1,220 0.005-0.007 915 0.002-0.004 925 0.004-0.006 6 - 2,630 0.005-0.008 1,860 0.005-0.008 1,490 0.005-0.008 970 0.005-0.008 725 0.003-0.005 735 0.005-0.007 - 1/4 2,480 0.005-0.008 1,750 0.005-0.008 1,410 0.005-0.008 910 0.005-0.008 685 0.003-0.005 695 0.005-0.007 8 - 1,970 0.007-0.009 1,395 0.007-0.009 1,120 0.007-0.009 725 0.007-0.009 545 0.003-0.006 550 0.006-0.009 - 3/8 1,650 0.008-0.011 1,170 0.008-0.011 940 0.008-0.011 610 0.008-0.011 460 0.004-0.007 460 0.007-0.011 10 - 1,575 0.008-0.011 1,115 0.008-0.011 900 0.008-0.011 580 0.008-0.011 435 0.004-0.008 440 0.008-0.011 - 7/16 1,420 0.009-0.012 1,000 0.009-0.012 810 0.009-0.012 520 0.009-0.012 390 0.005-0.009 400 0.009-0.012 12 - 1,310 0.009-0.013 930 0.009-0.013 750 0.009-0.013 485 0.009-0.013 365 0.005-0.009 370 0.009-0.013 - 1/2 1,240 0.010-0.014 870 0.010-0.014 705 0.010-0.014 450 0.010-0.014 345 0.005-0.010 350 0.010-0.014 1. The indicated speeds and feeds are for drilling with water soluble coolant. 2. The most suitable cutting fluid is water-emulsifiable high density oil (less than 10 times dilution) 3. When drilling cast surface (ie.not ground surface), reduce drilling speed by 20%. 4. For drilling depth>3D, reduce drilling speed (using the table below). 5. Step feeding is required for drilling depth>4D. 6. When using non-water soluble coolant or water-emulsifiable (over 10 times dilution), reduce the drilling speed by 20%.
D: Drill Diameter
≤ 5D
Drilling Depth
≤ 4D
≤ 6D
Coefficient for reducing RPM
x0.9
x0.8
x0.75
350
Drilling Technical
osgtool.com
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