Quote:

What is the best way to cut the two 4" scoop holes in a Demon hood? Too big for a hole saw and I'm affraid a jigsaw will be a rough cut even with a fine blade.






Well you can hack your way through the hood with hole saws, jig saws, etc, or you can do it professionally, find someone that does Industrial Electrical work to borrow a Greenlee set, or perhaps there's an Agricultural/Industrial tool rental store in your neck of the woods, use a Greenlee hyd. punch/knock out set, simple to use, drill a 3/4 to 7/8" dia hole in the center of the hole you want to open up, install the dies upper half on top, thread the lower die on the shaft untill it hits the underside of the hood and all the slack is taken up from the die, then just pump the handle of the jack, and presto, nice clean hole, no burrs, no chipped paint, no metal distortion, nothing, just a clean hole...practice the set up on a piece of scrap metal until you learn how to assemble the die, and any spacers required, because you want to do it once, and do it right



FYI, you want an Industrial Grennlee set up, as they range up to 6" hole dia.'s

8002538-greemlee.jpg (175 downloads)