have a straight AC-only thunderbolt now. "not so great" on thin stuff, like 2x2 by a sixteenth wall sq steel tubing. I get 'burn through' too often to suit me. would an AC/DC model of the same machine be any better on THIN stuff?
I realize a mig setup with a gas bottle would 'for sure' be better, but there's an AC/DC thunderbolt used nearby...
thanks for comments, guys
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