Most welders also use :
Angle grinder to help smooth out joints,
Wire brushes, to clean metal surfaces or abrade them before welding
Chipping slag hammer
C-clamps, ball peen hammer, electrode tip cleaners, flint strikers, needle nose and linesmen cutting pliers.
Other tools to have on hand: cold chisels, flat-head and Phillips screwdrivers, round and flat files, levels and squares.
My brother is a welder and he is finding the career to be a great opportunity. He even travels in to different factories across the country to perform work. Here are some links to get a good idea of the tools that are used to be a welder: