James are you using a drill chuck in the center to hold the drill ? if so are you sure this chuck is straght are you cneter drilling first. 118 drill are a normal but there can be few reasions I have found for it to wonder.
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(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Cadcam
Mastercam Instructor , Programming Consultant and ME (Manufacturing Eng) |