maybe I don't understand what you want to do, but if your doing a valve jop the seats themselves will be cleaned up with the valve seat facing stone, if your wanting to remove carbon out of the valve pocket around the seat or down inside the valve pocket any wire wheel on an electric drill will do the job, or you can just lap the seats with a valve and some lapping compound, either with a hand lapping tool or one that works kinda like a hand drill, can you explain a little better exactly what you want to do