Having a heck of a time getting the last bit of one of the plugs out. The first one came right out with the second left-hand drill bit. It unscrewed the plug perfectly. I was able to easily remove that screw. The other one is being more difficult. The drill got a tiny bit off center and now I am slowly trying to get the last of the lead out. I can move the screw a little bit, but the threads still have remnants of lead in them.

Any ideas?