A buddy of mine has decided to patent a idea of his finally. It's a rechargable 18volt blade sharpener that could be used to touch up your blades in between sharpenings. It's the size and shape of a dremel, only a little more powerful, with a round stone bit in it. It features a flat wing that comes off the top that holds a 45 degree angle, or any other angle you keep your blades at (it's adjustable.) The wing would ride along the bottom of the blade and the stone would quickly give the cutting edge a razor sharp finish. 2 or 3 passes on each edge would keep the blades sharp. Keep in mind that the thing is not made to re-bevel a a blade that has been abused for 2 monthes, but will will touch up blades that are not quite dull enough to be taken off and resharpened yet, giving more life in between sharpenings. Not sure about the price yet but let me know what you think of it.