I'm looking for a nice Lincoln Invertec V205-T AC/DC TIG machine. If you have one that you would like to sell please let me know.

I have been welding as needed for over 50 years and worked for a major welding supply company in the midwest out of high school back in the mid 70's. I have never welded professionally but only on an as needed basis. I started stick welding then added MIG and I am now getting into TIG. Hoping to be ...

Can anyone tell me what the difference is between a D.O.T. vs ISO/US marked cylinder and why? My LWS told me that they will not refill a cylinder if it is not D.O.T. stamped.

I see some manufacturers produce wire in .023 and some produce wire in .025, are these two sizes considered interchangable? Do you use an .025 contact tip for both?