I agree with the dremel it would be the best investment you would make for razors. they work wonders on shaping scales as well. sears did have them under the craftsman name. I have 5 dremels, 4000, 2 400's, 300and the craftsman which was a 275 dremel. the 275 in the craftsman is varispeed the dremel 275 had 2 or 3 speeds. the 4000 I use only on scales I have it mounted and use a flexshaft.