This stapler is completely failed. He repaired the orthosis the first time, but after that it didn't work. If I opened and closed the machine, it would then reset and only re-eject the first staple. Upon closer inspection of the mechanism, it was clear that after the first mount, the carriage failed. It is very disappointing that this tool went through a quality check and turned it into a retail box. I'm only giving this one star because the rating system doesn't allow me to give it a zero…