I had a northern 130 mig, but I didn't like it. I sold that and went with a lincolin weld PAC 180. It's a gass or gassless, and capable of 1/2" steel. I already had 240v in my shop so it was perfect. The duty cycle is high, so it can handle welding for hrs on end. It was well worth it. Home depot puts them on sale a few times a year!