Strata Advancemig 500 Trolley Package Complete Air Cooled Version HMEG300 Swivel pads for a self HP.BCS Swivel pads for a self levelling grip when clamping Variable speed control by dial and trigger switch for maximum control of sealant flow rate burn back and soft start settings 2T 4T trigger operation with crater control settings Adjustable arc force arc air gouging and lift TIG welding Synergic mig operation for optimum welding results every time Lift TIG operation with down slope and remote current control MIG waveform (inductance) control for great arc control and smoother welding results Damage resistant Industrial casing with front panel protection Wire inching and gas purge control Safe and simple set up and easy to use Adjustable pre flow