Have to exchange my 18V Hitachi for the third time. Won't push the nail all the way out, I have to remove nails, release the nose latch and wiggle the gun for every nail. A 2.5" nail is left sticking out over 1.5". Pretty safe to say the hitachi cordless finishers are junk. My 18 gauge still works but it won't drive the nails all the way. Not even close.I might exchange the 15 for a new one then sell it on CL just to get rid of it. It really belongs in the trash.