162N Dual-Grit Diamond Whetstone with Storage Base 8'' x 3'' / 203 x 76 mm Coarse / Extra FineSHARPAL 162N Dual Grit Diamond Whetstone that measures L 8 inch x W 3 inch is capable of handling a wide variety of edges including kitchen and pocket knives with either a single or double bevel on the blade, tools and much more. With MirrorFlat technology, hard wearing surface and durable design, it guarantees consistent, even sharpening for years of dependable use. It is double sided with both coarse and extra fine diamond surfaces. Use the coarse