Drilling Square Holes

watts_drill_01

(Via Make)

Okay, this is really geeky, but pretty cool… Ever wondered how you can drill a square hole? Sometimes a round hole just won’t cut it, so when you need a square hole you can either machine it using CNC… or use a Watts drill… It works like a Spirograph for machining:

reuleaux_triangle_rotating

There’s a few links to more information at the bottom of the Make page.

I TOLD you this was geeky…

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