This is a Chinese made product and not one of their better efforts. It arrived with a broken o-ring on the cutting attachment. It has a bunch of extra, small parts...but with NO literature for anything that is in the box, including all the small parts. So, I don't know whether one of the o-rings is a fit for the broken one. You shouldn't guess when dealing with flammable compressed gasses. It's sitting on my workbench in the box. I'm a little leery to use it. It may be a good value...if I ever use it. Don't know about the quality until I use it. Do I recommend it? Not yet...but probably not. The finish of the parts look very nice overall. The storage box isn't bad. But what are all those little extra parts for? I couldn't tell you. Disappointed.