If you get something around the 200 amp range, it will do most of the stuff you need. I've got something similar the Everlast units, but if your budget allows, a Miller, Lincoln or Fronius. We have a EWM machine at work, it's faultless, but may not be in your price range. Jody @ welding tips and tricks has done a lot of testing and reviews. Check out his YouTube channel


Alan Jones