DMT WM8FC-WB 8-Inch DuoSharp Plus Bench Stone - Fine/Coarse with Base Superior Diamond Sharpening Stones Legendary quality Made in the USA 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 coarse diamond to transform a dull edge and fine diamond for a razor sharp 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 performance and reliable service