A small pneumatic Jack Hammer will also work. Safety first! Goggles and most importantly EAR PROTECTION....As @MarkusBarkus indicated DON'T DO ANYTHING STUPID unless you know what you are doing and have complete confidence it what you are doing...With the new brackets coming don't even mess with it......stacking tolerances can be the silent killer! I hope my "get the Dremel tool" comment didn't create static for you guys, Emile. It is assumed that would be a last resort to be undertaken only by experienced people.
Update from MarkusBarkus: Don't screw up your Extreme using power tools, files, etc. if you don't know what you're doing!
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