Smiths 6in. X 2.5in. Diamond Bench Stone Fine Black/Metallic/Orange. 5" Diamond Bench Stone offers the ultimate in sharpening technology. It features multiple layers of micron-sized moncrystalline diamonds bonded in nickel to a flat metal surface. The unique overlapping oval hole design speeds sharpening by collecting and holding the metal filings which ordinarily build up during the sharpening process. This allows the sharpening surface to remain clean and clear and speeds sharpening. This stone is excellent for sharpening wide woodworking tools medium to small port/utility knives or kitchen knives. Specifications for Smiths Diamond Bench Stone: Manufacturer: Smiths Length: 6 in Width: 2.5 in Features of Smiths Diamond Bench Stone ONE-sided sharpening stone; Offered in two grits: COARSE or FINE For a diamond stone to SET your edge - choose COARSE (Yellow-325 Grit) For a diamond stone to FINISH your edge - choose FINE (Orange-750 Grit) Molded plastic base with non-slip rubber feet for safety; Clear plastic lid to protect the stone Micro-tool sharpening pad for small tools Package Contents: Smiths Diamond Bench Stone Smiths SP-DBSF: 6in. X 2.5in. Diamond Bench Stone Fine Black/Metallic/Orange