DMT 8in DuoSharp Bench Stone E/F Hardcoat Surface with Base. Now offered with Hardcoat surface for extra durability when used specifically for the hardest steels and ceramic blades. Designed to withstand the rigors of sharpening ceramic knives this 8in DuoSharp Bench Stone is an excellent counter and bench sharpener with a larger wider diamond surface for sharpening a variety of edges. The model comes with a Bench Stone Base Accessory. HC Extra-Fine diamond 9 micron /1200 mesh to polish and refine a razor edge after sharpening with a coarser diamond; HC Fine diamond 25 micron / 600 mesh for a razor sharp edge.Sharpening with diamonds is fast and easy. No messy oils neededharpen dry or with water. Durable construction will provide years of consistent performance and reliable service. For proper tool maintenance woodworkers chefs and other professionals rely on the superior quality and versatility of DMT products. Specifications for DMT DuoSharp Bench Stone: Manufacturer: DMT Overall Length: 8 in Package Contents: DMT DuoSharp Bench Stone DMT W8EF-H-WB: 8in DuoSharp Bench Stone E/F Hardcoat Surface with Base