DMT DCLF Tapered 3/4-inch to 1-1/4-inch 8-inch Half Round Honing Cone Superior diamond sharpening stones Legendary quality Made in the USA Specialty honing with diamond slip stone 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