I think the smallest flux core is .030. I am using .023 w/argon/co2 gas & it is doing great on sheetmetal. I think the conversion to gas is worth it.Brian


My \'64\'s in the Gallery
Pictures in my Photobucket
1964 C10 Custom Cab 350/700R4
1964 Suburban 350/700R4
1979 Ford F350 4x4 400/c6