This Lincoln Electric® Square Wave® TIG 200 Welder is a portable TIG and stick welding machine that lets hobbyists, makers, small fabricators and craftsmen explore their creativity. The welder provides smooth and stable AC TIG welding on aluminum and DC TIG welding on steel, stainless steel and chrome-moly. A user-friendly interface enables the operator to set it, forget it and weld, helping to expand your welding expertise. Additional functionalities of the welder can be put into action as skills and confidence level grow.