use a plasma cutter Glenn, actually wrap the area where you are going to cut first with masking tape and use a hack saw, it will keep the graphite from splintering .
dremel work well for me, but most cut off wheels dont have the circumference (radius) to make it through the blank cleanly, so turning the blank is often necessary.
Hack saw works fine, but just make sure you use very light fine strokes at the end to keep the blank from splintering.
edit: i just read above, what john said, its true.
Last edited by Lend-a-Fish; May-16-2008 at 12:50 PM..
Reason: spelling