[GWN7]

Did a search on "welding" & came up with 102 threads on the subject. If I remember quite a few went into great detail on what & how to.

Best is to decide what your budjet allows for a unit, as with all tools in the long run it pays to buy quality.

And you need to get a good grinder (or two, sizes) when working with metal. Also needed will be hammers, clamps, metal shear (air or hand opperated[snips]) bars, gloves, safety shield, coveralls (100% cotton) and respirator.

As jackmech said, get some used metal after you have decided on which unit and practice making lap & joint welds. The machine will have a book with it to explain how it works ...& practice.

Best advise I can give is get one that will take various sizes of wire and can be used as a gas or non gas feed.....