Here's one backer tool that I have like Mark mentioned. It's magnetic (the black part) and can be used hands-free. Although I've never had the need to use it for plug welds, just butt welds and hole filling (like welding where I had removed a sheet metal screw holding two pieces together temporarily.) I also have a copper bar about 1.5" w x 12" long that's handy for long butt welds, and a couple custom smashed copper pipe pieces. Attaching a handle to a piece of copper pipe is useful as well.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
