The Forney 230 Volt MIG Welder, Model 311 is a workhorse machine that can weld up to 3/8” mild steel plate. When it comes to portable welders, the Forney 311 is a brute. It’s one tough customer! The machine can handle both conventional MIG welding and Flux-Core welding processes, although a Spool Gun must be purchased separately for welding aluminum. The heavy duty, quick-change torch makes it easy to back and forth between the conventional MIG gun and the Spool Gun. Read more