I saw this once years ago, but can't find it now. It's a drill bit that drills a conical hole whose taper matches the cone left by a pencil sharpener.

The idea is that you can repair stripped screw holes by reaming them out with this drill bit, and then plugging them with a dowel sharpened with a pencil sharpener.

This seems like a really elegant way to repair a stripped screw hole.

  • 2
    What's the advantage over drilling a standard hole and using a standard dowel? – fixer1234 Nov 12 '17 at 23:04
  • It just seemed a neater solution. Plus, I've repaired a number of doors where there was too little wood left over after drilling for a dowel. It seems to me that the least material you remove, the better. – Edward Falk Nov 15 '17 at 22:47

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