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Knowledge
  • Overload fractures of the cutting edge on the lead
  • Hardness or tool material not suitable for the application
  • Pilot hole too small or work hardened
  • A longer lead or more flutes for the same lead length, giving a greater number of cutting teeth
  • In reground tools, the hardness can be reduced; apply correct parameters for regrinding
  • Increase frequency of changes or regrinding of the drilling tool
  • Use the correct application parameters for the drilling tool
  • Select the correct lubricant and ensure adequate supply