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08-07-2005 #1
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Find a heating system shop, they have sheet metal brakes and hole punches. Lay out where you want the holes and the bend, Get a piece of welding rod or coat hanger and bend it to the angle you want the sheet metal bent to, use it as a template.
Electrical contractors and stereo installers have punches too but usually in conduit sizes.
You can have the holes punched as close as they can get, then file them larger to fit. Use a protractor to mark the hole dia before they punch it.
If you use a hole saw, drill from the backside to reduce scratches, or put masking tape on the front side before you drill, swarf from the saw will cause the scratches.
Last edited by David Pozzi; 09-05-2005 at 09:29 PM.
David Pozzi http://www.pozziracing.com67 Camaro RS that will be faster than anything Mary owns.
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