I bought one of the Cut50 units two years ago and like you it's not a daily affair cutting metal but it sure comes in handy sometimes. Yes, this is cheap china junk and I have no idea of how long it will last but for my needs, so far so good. Mine came with one, but make sure you have either dry air out of the end of your compressor hose or put a moisture trap on the end of the unit. Mositure in the unit seems to be the biggest problem with these. And don't forget to turn on the air supply before cutting - I screwed up the second time using mine and promptly ruined the cutting tip. I did a little bit of work on mine too, upgrading the air supply piece and the ground cable. Mine is capable of running off of either 120 or 240 and I set it up for 240. So far it's whacked it's way through .250 steel but I use it mostly for frame work and cutting roll cage tubing, it goes through that stuff like it's butter. Lastly I have a dedicated pair of gloves and a pair of Hobart Plasma glasses. My welding helmet was too dark and the arc isn't anywhere near a welding unit.