Eastwood and Harbor Freight has one that looks like a big clamp. The Two "tongs" clamp together with what you want two weld together between them. An electrical current runs thru the "tongs" and create the weld. Their expensive. Can also drill a small hole in one piece of the metal then weld thru that hole onto the other piece to be welded to create a spot weld. I did this method this weekend works great. Later

"Finish the thing, do it right the first time, and drive the S.O.B.!"

1949 Chevy half ton 3100 In a kazillion pieces
2000 GMC Serria 1500 SL 4x4