Reply To: boring tool for 3mm hole in 4mm ash

///Reply To: boring tool for 3mm hole in 4mm ash
Reply To: boring tool for 3mm hole in 4mm ash 2016-01-15T19:39:49+00:00
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So that can I understand what you want, you want to put a 3 mm hole in 4 mm stock. Leaving a half mm on each side of the hole.

Are you planing on doing this with a hand drill or a drill press? I will tell you the best drill bits, are the brad points from Lee Valley. Their drill bits have a lip, that cut a cleaner hole. With that tight tolerance, I would probably drill some practice pieces first.

 

Lee Valley

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