The ideal stone for knifemakers designed for hard, wear resistant steel. Soak in water or oil and save time hand sanding. Can be used on the "end grain" or the "side grain".
CS-HD finishing stone has a harder structure and breaks down more slowly. This polishing stone can be used to polish even the hardest die and mold steels. Polishers claim excellent results with the CS-HD when finishing dies ranging in hardness from 47 to 63Rc.