Hobart 500546R 700i Reconditioned A-Stock AirForce New Inverter Design-Powerful cutting ability at just over half the weight of prior model (Air Force 625). Weighs only 31.4-Pound Capable of cutting 3/8 to 5/8-Inch mild steel when powered by an engine-driven welder with a 240-Volt generator power outlet of 8 kW or more Post-flow Air Cooling-Cools the torch and tip after cutting, extending life of replaceable tip and electrode Fan-On-Demand-Runs only when needed reducing dust/debris pulled into unit Thermal Overload Protection-Built to withstand tough working environments. Rated for 35-Percent duty cycle at 104-Degree Fahrenheit