Joshua Roth 1804 Combination Water StoneUsed for sharpening fine Japanese knives and tools Use for sharpening shears and other cutting tools with straight blades 280 grit gray bauxite stone on one side, and a 1500 grit white aluminum stone on the other side 280 grit stone can remove very small nicks and burrs Fine grit stone gets the cutting edges back to their original sharpness. Use for sharpening shears and other cutting tools with straight blades. This combination water stone has a 280