These coarse diamond hones work with the V-Sharp Classic II Diamond Sharpener from Warthog Sharpeners. They have a 325 diamond grit that is ideal for sharpening kitchen, pocket, and hunting knives. It leaves a toothy, micro-fine serration that is perfect for cutting through vegetables or meats. Item comes with two diamond honers that feature an easy slide on design. Always keep your knives at their peak sharpness with the tools and accessories from Warthog.