This plasma cutter works perfectly. No air leaked out after assembly like other cutters I've read reviews about. I used both clamps that came with the regulator on the same fitting and that is probably why there were no leaks. I've used it to cut over 25 pieces of 3/8" and 5" wide mild steel without having to change tips. The tip is not really damaged after all these cuts. The non-contact pilot arc tip works great with no hiccups. I highly recommend this tailor.