Thanks Sonny,
I found a thread on Samba about hinge pins...wasn't this one though. Now I have two to look at. ???
I really don't think I'm going to have that much of a problem now. I stopped using the air hammer. It turns out I had driven the pins up as far as they would go using that bit.. The bit has a point and gets wider. I almost bought a set of punches this morning but didn't. I grabbed an old allen wrench and stuck that in the bottom of the hinge and smacked it a couple of times and got movement on all four pins.I even put the allen wrench in the top of the hinge and smacked them back down and then smacked them right back up again. You all know what an allen wrench looks like so you know it gets a little hard to smack the curved part. I'm going to take it to work tomorrow and cut the curved part off and make my own punch. :icon_cheesygrin: