The Tokentools steel foot control is the ideal add on to our range of ADC315 and TIG160P TIG welding machines. The foot control simply plugs into the 7 pin front panel control socket. Desired max amperage is set via the max amps limiting potentiometer on the foot control front panel whilst variable amperage is controlled via the foot control directly. The foot control has an in built switch to also activate the HF arc ignition circuit.