8th online Calculator

May 06, 2013


For registered Website visitors the calculator "Drill hole size for tapped threads" is ready to use. It will let you find the correct size of drill for your thread tapping operation, whether you use the US Standard taps, Metric taps or Birtish taps.

Thread types included:

  • US Standard UNC
  • US Standard UNF
  • US Standard UNEF
  • ISO Metric coarse
  • ISO Metric fine
  • British Standard Whitworth BSW
  • British Standard Fine BSF

A helpful reference tool for engineers, machinists, tool makers and students.

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