【Product Name】 SK11 Double-Sided Diamond Whetstone 【Product Description】 From household knives to super alloys!! Sharpening even hard blades like ceramics powerfully. A two-sided type that can be used on both sides, with a coarse grinding surface of grit #400 and a medium finishing surface of grit #1000. Includes a non-slip underlay. 【Details】 Uses: Can sharpen hard blades such as ceramic knives and super hard metals. (Knives, chisels, planes, etc.) Whetstone size (mm): 204 x 65 x 7 【Caution】 ※ Please sharpen while applying water. #Whetstone #SK11 #KnifeSharpening