RUN AWAY, DO NOT USE THESE LOUSY WELDERS. Needed a port cut on a boiler and ferrule welded in place. Agreed on $90. as it was 1.5 hrs labor and promised in a week. Kept calling, 4 weeks later I called and said I'm coming to pick it up and he said ok, I'll have it done Friday. On inspection Friday, what a crappy job: 1) a sputtery slag covered weld that wasn't cleaned up 2) multiple pinholes in the weld. 3) and it wasn't installed level, Owner said it was and I made him measure it cause I could see it just looking at it. 4) His shop Mexican guy did the work and I asked him how long it took. 50 mins. Shop ripped me all the way around this deal. Highly recommend you NEVER USE these crappy welders and unethical owner.