Drill a square Hole?

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Forum topic by interpim posted 1750 days ago 1524 views 0 times favorited 7 replies Add to Favorites Watch
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1131 posts in 2090 days

1750 days ago

I found this site earlier and thought it was pretty interesting…

I wonder if this could be used in a woodworking aspect.

-- San Diego, CA

7 replies so far

View TopamaxSurvivor's profile


14724 posts in 2307 days

#1 posted 1750 days ago

It’s going to take a special drill to make the controlled the jirations of the cutter:-))

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View Thuan's profile


203 posts in 2449 days

#2 posted 1750 days ago

Reminds me of a rotory engine, just take a Mazda RX8’s engine, shrink it down and there you have it.

-- Thuan

View a1Jim's profile


112014 posts in 2208 days

#3 posted 1750 days ago

Pretty cool design a new one on me

-- Custom furniture

View scrappy's profile


3505 posts in 2062 days

#4 posted 1750 days ago

Way old design for machinest. My dad was a machinest back in the 60’s and he had a triangle drill bit with a square guide, that was designed to drill square holes. It had sharper edges then the drawing and when it was done, your hole was square.(no rounded corners) He used to use it to make the hole for a cairage bolt head. Was a little funky to watch but the results were cool.

Just my bit of info.


-- Scrap Wood's the best...the projects are smaller, and so is the mess!

View bigike's profile


4031 posts in 1920 days

#5 posted 1750 days ago

nice but where can i get one or a set?

-- Ike, Big Daddies Woodshop,

View ondablade's profile


105 posts in 1830 days

#6 posted 1750 days ago

Same thought here!


-- Late awakener....

View himcules's profile


17 posts in 2372 days

#7 posted 1750 days ago

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