Lincoln Electric K4361-1 Foot PedalLincoln Electric K4361 1 Foot Pedal The Lincoln Electric K4361 1 TIG Foot Pedal controls the amperage when TIG welding with Lincoln Electric's Weld Pak 180i MP DV and LE31MP. As you depress the pedal, current increases, or fully depress it to achieve the maximum set current. When you are finished welding, fully raise the pedal and the after flow cycle begins. This foot pedal will give the optimum amperage needed for any TIG welding project. For Use