Drill a square Hole?

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Forum topic by interpim posted 11-11-2009 06:32 AM 1906 views 0 times favorited 7 replies Add to Favorites Watch
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1170 posts in 3368 days

11-11-2009 06:32 AM

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


18200 posts in 3585 days

#1 posted 11-11-2009 07:05 AM

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

-- Bob in WW ~ "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 3727 days

#2 posted 11-11-2009 07:13 AM

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


116914 posts in 3487 days

#3 posted 11-11-2009 08:39 AM

Pretty cool design a new one on me

-- Custom furniture

View scrappy's profile


3506 posts in 3340 days

#4 posted 11-11-2009 08:55 AM

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


4053 posts in 3198 days

#5 posted 11-11-2009 07:17 PM

nice but where can i get one or a set?

-- Ike, Big Daddies Woodshop,

View ondablade's profile


105 posts in 3108 days

#6 posted 11-11-2009 07:26 PM

Same thought here!


-- Late awakener....

View himcules's profile


17 posts in 3650 days

#7 posted 11-11-2009 07:42 PM

Have your say...

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