CARBIDE
List 215, 220D, 200 & 233*
General Drilling Operations Work Material
Alloy Tool Steels, Tool Steels
Mild Steels, Carbon Steels
Cast Iron
Aluminum
Hardness
Up to 30 HRC 250-270 SFM
Drilling Speed
280-320 SFM
250-350 SFM
550-650 SFM
Drill Dia.
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
mm Inch 1 -
25,000 0.0010 - 0.0012 25,000 0.0003 - 0.0005 25,000 0.0007 - 0.0009 25,000 0.0006 - 0.0008 - 1/16 18,300 0.0016 - 0.0018 15,900 0.0004 - 0.0006 18,300 0.0011 - 0.0013 25,000 0.0010 - 0.0012 2 - 14,600 0.0020 - 0.0022 12,600 0.0006 - 0.0008 14,600 0.0014 - 0.0016 25,000 0.0013 - 0.0015 - 3/32 12,200 0.0024 - 0.0026 10,600 0.0007 - 0.0009 12,200 0.0017 - 0.0019 24,400 0.0015 - 0.0017 3 - 9,700 0.0027 - 0.0029 8,400 0.0012 - 0.0014 9,700 0.0021 - 0.0023 19,400 0.0020 - 0.0022 - 1/8 9,200 0.0028 - 0.0030 7,950 0.0012 - 0.0015 9,200 0.0022 - 0.0024 18,300 0.0022 - 0.0024 4 - 7,300 0.0030 - 0.0032 6,300 0.0013 - 0.0015 7,300 0.0023 - 0.0025 14,500 0.0029 - 0.0031 - 3/16 6,100 0.0035 - 0.0037 5,300 0.0015 - 0.0017 6,100 0.0027 - 0.0029 12,200 0.0034 - 0.0036 6 - 4,850 0.0040 - 0.0042 4,200 0.0020 - 0.0022 4,850 0.0037 - 0.0039 9,700 0.0045 - 0.0047 - 1/4 4,600 0.0042 - 0.0044 3,950 0.0021 - 0.0023 4,600 0.0039 - 0.0041 9,150 0.0047 - 0.0049 8 - 3,650 0.0048 - 0.0050 3,150 0.0024 - 0.0026 3,650 0.0044 - 0.0046 7,250 0.0054 - 0.0056 - 3/8 3,050 0.0065 - 0.0067 2,650 0.0033 - 0.0035 3,050 0.0047 - 0.0049 6,100 0.0066 - 0.0068 10 - 2,900 0.0067 - 0.0069 2,500 0.0033 - 0.0036 2,900 0.0048 - 0.0050 5,800 0.0068 - 0.0070 - 7/16 2,600 0.0068 - 0.0070 2,250 0.0034 - 0.0036 2,600 0.0049 - 0.0051 5,200 0.0072 - 0.0074 12 - 2,400 0.0074 - 0.0076 2,100 0.0034 - 0.0036 2,400 0.0054 - 0.0056 4,800 0.0078 - 0.0080 - 1/2 2,250 0.0078 - 0.0080 1,950 0.0035 - 0.0036 2,250 0.0057 - 0.0059 4,550 0.0082 - 0.0084
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Drilling Technical
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