How to Drill Square Holes

by GadgetManiac on August 27, 2008


Use a Reuleaux triangle drill bit to create square holes (…well, almost-square holes).

…sort of like a Wankel engine for woodworking.

Reuleaux Triangle – Mathworld … via Hacker News

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{ 2 comments… read them below or add one }

Don August 18, 2010 at 7:53 PM

This is cool, I use this technique in my woodworking shop all the time!

Reply

KevinAFD January 17, 2011 at 9:07 AM

This is cool. I never would’ve figured this out on my own, either.

Reply

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