The Push Button is a replacement part for the Flair 2 torch. You can identify where this part is used by cross reference to the parts manual below. The flair 2 type gouging torch is a 600 amp carbon-arc torch ideal for use in fabrication and boiler shops shipyards maintenance shops and foundries for applications up to 600amps. It will accept round type arc welding carbons from 4mm to 10mm diameter.