anyone know any info about the auto arc's by miller... I can get them through my tool sales business and have them on ebay, But i don't know much about them. I have a 140amp matco welder that i got in a trade, works excellen for sheet metal work... and a 250 amp lincoln mig that i use for thicker stuff... I like them both very much... I like the 140 cause i can plug it in anywhere and it still welds excellent.. just not thick stock..