welder/welding
I haven't successfully done any outer sheet metal with it. Quite frankly my hands just aren't steady enough nor are my eyes good enough. I had a friend weld in the patch panels on the Barracuda with the car on one of his lifts. Getting the car higher would help with my hands, but he's done lots of sheet metal repairs. I did weld in the inner fender well on the Barracuda (using flux core), but that was all plug welds. I don't remember the settings, but probably the lowest heat setting.