Welders and Plasma Cutters Tank Master now stock a range of Welders and even a Plasma Cutter. COM1 - I-ARC 150GEN - TIG-ARC - $549.00 COM1 - I-ARC 170GEN - TIG-ARC - $659.00 COM1 - I-ARC 200GEN - TIG-ARC - $769.00 ROSS 100 Amp - RXT100P - Gassless MIG - $426.00 ROSS 40 Amp Plasma Cutter - RXT40EP - $1,028.00