Yeah Russ, use a dremel if you have to cut through rock...if not a pair of shears or bone cutters will work too...it sort of depends on the species of blasto...if its mereletti you can probably use bone cutters to cut the heads of. Welsi, you'll probably need a dremel to cut the rock off with the blasto attached to it.
Todd, I remember that day well over at Murf's...damn near cut my finger off.