Drilling Deviation or Edge Collapse

Problem Description:The eccentricity of the hole and the chipping of the entrance affect the fitting accuracy.

Possible causes:

  • Pre-drilling center misalignment or positioning error
  • The drill bit is not sharp or the material is too hard

Solution:

  • Add center drill pilot and slow feed into hole
  • Use a stepped drill or a drill bit with a special angled edge
  • Automatic correction mechanism adjusts hole offset
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