Having problems with the Trigger mechanism on a cebora 130t welding star or snap on, does anyone know if you can get the small contact that goes in the brass housing aswell as the spring, the tips seem to have worn and its not making very good contact anymore, have filed them down and stretched spring to get a job done but it annoying the hell out of me now, have looked on the snap spares site but they dont seem to list it, someone on ebay lists the spring and another kit but even thats not listed on the snap on site, seems they dont put everything in there catalogue