Hobart 500416 Handler 175 Four output voltage settings with wire feed tracking provide quick and easy adjustment for different materials and thicknesses Built-in contactor eases use and is an excellent safety feature which makes wire electrically "cold" when not welding Separate "purge" setting to purge gas line and set flow rate without wasting wire Welds 22 gauge up to 1/4 inch in a single pass Self-resetting thermal overload and motor protection