timzcat wrote:Screw extractors will do the trick but your best course of action is to get a reverse drill bit for drilling it out. Typically using a reverse drill bit to perform the drilling will in and of itself loosen the bolt so you won't have to resort to the actual extractor.
^^^This. I'm always surprised I don't see this recommendation more around here rather than the extractors/EZ-out. Reverse drill bits work wonders and often the bolt will simply back out in the process of drilling it.