With this Shapton Pro Stone you can quickly and very evenly sharpen your knives. This ceramic Japanese sharpening stone has a grain size of 320, which is relatively coarse. This sharpening stone will enable you to quickly remove a lot of material. Perfect for restoring a dull knife. The sharpening stone can be used to sharpen practically all knives. From outdoor knives to kitchen knives, and from pocket knives to chisels.