TIG Welding Machine Jasic TIG400ACDC(E167) is used for welding with the features of TIG & MMA function, 2t/4t function, easy arc ignition with high frequency. Other features include good arc stiffness and concentrated heat. It has a stable arc without spatter that provides good shaping. It is used in welding with materials such as carbon, steel, stainless steel, copper and non-ferrous metals. It has a digital meter display.