TIG AC DC-ARC 315 Welding Machine has compact & portable design, high efficiency, low energy consumption, and rust proof body. Engineered with An advance MOSFET control technology, it performs with two modes for TIG welding AC or DC output step. There is an impulse inside the machine with overload protection. Designed with force air cooled, thermostatic control, and carrying strap with handle. Moreover, TIG AC DC-ARC 315 Welding Machine has great usage in shipbuilding, construction site, large iron structure fabrication, etc.