Review on HBT HBCN45P Coil Roofing Nailer by Darin Marshall

Plunger driving nail head into shingle/lining gets stuck in down position. Once the piston rises again, the weapon fires again. Sometimes it's just a whiff of air, sometimes it's like hitting a nail: there's a little dent, but there's no nail. I had to open and close the door to hammer in a nail. Sometimes two or three before I have to do it again. I used some oil before first use. Re-oiled and a few drops around that pesky pin. Didn't bring anything good.