In a word "garbageโ. There's a pin holding the trigger and it doesn't quite fit. The pen will inevitably fall out and the trigger will fall out while you are in the middle of a work, and it keeps falling out. I bought a second gun as a spare, same thing. So far it holds a spot of epoxy glue. Both guns are fairly new, the one I heated up was plugged in and just lay on the stairs and started making noise and it started smoking. If I hadn't been there to turn it off it would have caught fire I'm sure. My god, I was at the house at the time, not at recess. Like I said, both guns are fairly new and I'm good with my tools. It's not just junk, these guns are dangerous. I went and bought a Crain. Double the money but a much better stapler