Off brand punches

[Brew_Dude41]

4% solution citric acid by weight. My simple rule of thumb is 1LB of citric acid powder to 3 gallons of water. Close enough. Mid 100's F for an hour. Rinse, air dry. If you can source a drill mountable stainless steel wire wheel, you can get a head start before you let the acid do its work.

It's not that bad. It's kind of right down the middle in the range of the worst and best attempts I've seen. I think the main issue is that a pass was made from the inside without shielding on the outside. It's either that or the gas coverage was really poor.
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Good argon coverage
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Makes me want to run out and get a little hobby welder just to run a few beads again...
I was never certified or "trained" but I worked in an Iron shop that fabbed big projects (a bridge refurbs in Philly and NY) and I was working with a number of guys on scrap off the clock or in down time. Nothing as precise a SS kettle, I am sure those guys would have burned right through it, but was always fun to get to throw a few sparks here and there.