|
Re: 20 small holes or 1 big hole?
unless your going to finish and paint the inside of the firewall, the plugs don't need to be meticulously cut to butt joint in the hole
i used square cut metal to fill most of the big holes, i see 9 holes in your firewall that need metal filler
anything under 5/8'' can be plug welded using a copper or brass backer bar, mig won't stick to either
|