Sockets do not work on those, it has a spinning collar on it. We had to drill it,even with brand new mac cobalt bits it really didnt drill much. Ended up having to use the air hammer. It got messy, really messy. Do yourself a favor, take it to the dealer if you cant find the key code, they have a master set and can get it off for you.
So to sum it up, drilling wont work either will Pounding on a socket.