tomshobby
Yoda
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A few years ago I showed how I did this to my clutch/brake pedal shaft. It has worked out great. So now with my door hinges off and getting ready for paint I decided to do the same to them so the same grease gun adapter can be used. The drill used is a 1/8th" center drill. A word of caution; It is best to do this with a vise on a drill press so the tip of the center drill does not break off as easily.