DMT WM8EF-WB 8-Inch DuoSharp Plus Bench Stone - Extra Fine/Fine With Base Excellent counter or bench use for sharpening a variety of knives and edges plus a continuous diamond zone for small and pointed tools Two sided sharpening with fine for a razor sharp edge and extra-fine to polish and refine an edge Sharpens knives faster than conventional stones with DMT's monocrystalline diamond surface No oil is needed-sharpen dry or with water Durable construction will provide years of consistent peformance and reliable service