I have used a piece of stainless tubing just larger then the diameter of the pin. I cut some teeth on the end of the tube and use it like a saw to cut out the hinge. I make the end look sort of like a hole saw. I put the tube in a drill and the pin guides the tube so you do not take out to much material. You can then fill the hole with a plug of balsa or just get a larger pin style hinge.


Buzz.