Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

 
 
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Default Cut an accurate 1/2" square hole through 1/4" aluminum without tools?

I need to cut a 1/2" square through 1/4" aluminum. It doesn't have to be
centered, but the dimensions of the hole need to be correct.

I'd like to use a router type tool that I made, but the aluminum would have
to be perfectly square.

Any tricky way to do that?

Thanks.
 
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