If you have a lot of experience with a dremel, and are patient, it can work....

....but most guys who wind up using a dremel seem to do so as part of a desire to speed things up without buying and learning to use real power tools. The combination of a ridiculously fast, practically worthless marketing-gimmick-in-power-tool's-clothes and an impatient new restorer is the recipe for a ruined razor and/or missing digits or sucking chest wounds.

I'd just stick to hand-work...dremeling with MAAS or such doesn't really do much anyway, IMO/E.