I have a Nutool 100/2 mig welder it would appear that it can run in reverse polarity if required can any one tellme about this machine as i have no manual. Nutool have no idea of customer service or any sort of sevice come to that ,so if anyone has any info i would be most grateful.I live in Spain near Seville(hot 42deg C.)and getting assistance is very difficult
Dave C (the Bear)

Dave C (the Bear)