[ckissick]

Yes, but while building a guitar I never came across a stripped, rusty bolt.

The two allen bolts that hold one of the rear bumpers to the body are rounded off and will simply not loosen. They must be drilled out. Luckily, an allen bolt holds the drill bit in the right place automatically. But before I tackle this, does anyone have a great tool or method to make this easy? I've never been happy with "easy-out" type tools that I've bought in hardware stores.

EDIT: I used the search and found some good ideas. Never mind.