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How do you punch a square hole?
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NoOne=NBA=:

--- Quote from: Hoagie_one on March 08, 2005, 10:46:09 pm ---Do they make square hole punches?

--- End quote ---

Yes, but you're going to need the press they go in.
A machine shop should be able to do it for you, but the cost would probably be a little steep for the few holes you need.
Ken Layton:
I use a small square file in metal control panels. Greenlee makes square 'knockout' (a.k.a. "chassis") punches but get out your wallet -- they are expensive!
1UP:
http://www.directron.com/nibbletool.html

I have one of these nibblers, which work pretty well in thin metal and plastic (1/16" or less).  They're more for case modding, so I'm not sure if this would work on a metal control panel.  Also, probably not useful for carriage bolt holes.
paigeoliver:
I normally just drill the holes round and then either bang the bolts down with a hammer or screw them until they go down flat.
Hoagie_one:

--- Quote from: paigeoliver on March 09, 2005, 01:05:54 am ---I normally just drill the holes round and then either bang the bolts down with a hammer or screw them until they go down flat.

--- End quote ---

use teh bolt to punch the square then....yeah, i'll prolly go that route
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