WHO-Ni Ultra Premium Performance Drill for Nickel Alloys List 5950Ni-EXOPRO® WHO-Ni: 3D List 5955Ni-EXOPRO® WHO-Ni: 5D General Drilling Operations Work Carbon Steels,MaterialMild SteelsHardness1010, 1050, 12L14Alloy Steels4140, 4130 Ni-Base Material,Cast IronDuctile Cast IronInconel38-43 HRC DrillingSpeed 260-395 SFM 260-395 SFM 260-395 SFM 195-330 SFM 35-100 SFM Drill Dia. Speed Feed Speed Feed Speed Feed Speed Feed Speed Feed mm Inch RPM IPR RPM IPR RPM IPR RPM IPR RPM IPR 3 – 10,600 0.002-0.005 10,600 0.002-0.005 10,600 0.002-0.005 8,500 0.002-0.005 2,100 0.001-0.002 – 1/8 10,000 0.002-0.005 10,000 0.002-0.005 10,000 0.002-0.005 8,000 0.002-0.005 1,900 0.001-0.002 4 – 8,000 0.003-0.006 8,000 0.003-0.006 8,000 0.003-0.006 6,400 0.003-0.006 1,600 0.001-0.003 – 3/16 6,400 0.004-0.008 6,400 0.004-0.008 6,400 0.004-0.008 5,100 0.004-0.008 1,300 0.002-0.004 6 – 5,300 0.005-0.009 5,300 0.005-0.009 5,300 0.005-0.009 4,200 0.005-0.009 1,100 0.002-0.005 – 1/4 5,100 0.005-0.009 5,100 0.005-0.009 5,100 0.005-0.009 4,000 0.005-0.009 1,100 0.002-0.005 8 – 4,000 0.006-0.011 4,000 0.006-0.011 4,000 0.006-0.011 3,200 0.006-0.011 800 0.003-0.006 – 3/8 3,400 0.007-0.012 3,400 0.007-0.012 3,400 0.007-0.012 2,700 0.007-0.012 650 0.003-0.007 10 – 3,200 0.008-0.012 3,200 0.008-0.012 3,200 0.008-0.012 2,500 0.008-0.012 600 0.004-0.008 – 7/16 2,900 0.008-0.012 2,900 0.008-0.012 2,900 0.008-0.012 2,300 0.008-0.012 600 0.004-0.009 12 – 2,700 0.008-0.012 2,700 0.008-0.012 2,700 0.008-0.012 2,100 0.008-0.012 500 0.005-0.009 – 1/2 2,400 0.008-0.012 2,400 0.008-0.012 2,400 0.008-0.012 2,000 0.008-0.012 500 0.005-0.010 General Drilling Operations WorkMaterial Special Alloy Steels, Hardened Steels Hardness 35-40 HRC 40-45 HRC 45-56 HRC DrillingSpeed 130-160 SFM 115-150 SFM 65-100 SFM Drill Dia. Speed Feed Speed Feed Speed Feed mm Inch RPM IPR RPM IPR RPM IPR 3 – 4,700 0.002-0.003 4,200 0.001-0.002 2,675 0.001-0.002 – 1/8 4,000 0.002-0.003 3,900 0.001-0.002 2,400 0.001-0.002 4 – 3,600 0.003-0.004 3,200 0.001-0.003 2,000 0.001-0.003 – 3/16 2,900 0.004-0.005 2,500 0.002-0.004 1,600 0.002-0.004 6 – 2,400 0.005-0.006 2,100 0.002-0.005 1,300 0.002-0.005 – 1/4 2,300 0.005-0.006 2,000 0.002-0.005 1,200 0.002-0.005 8 – 1,800 0.006-0.008 1,600 0.003-0.006 1,000 0.003-0.006 – 3/8 1,550 0.007-0.009 1,350 0.003-0.007 850 0.003-0.007 10 – 1,400 0.008-0.010 1,300 0.004-0.008 800 0.004-0.008 – 7/16 1,300 0.009-0.011 1,150 0.004-0.009 720 0.004-0.009 12 – 1,200 0.009-0.012 1,100 0.005-0.009 700 0.005-0.009 – 1/2 1,100 0.010-0.013 1,100 0.005-0.010 625 0.005-0.010 WWW.OSGTOOL.COM Drilling Technical 303