Kyoto Tanaka Toishi Kogyosho White Story WA #3000 B-grade Artificial Whetstone Dimensions: Approximately 210mm long, 70mm wide, 25mm thick Manufacturing Method: Resinoite method (resin molding method) Grit: Medium finishing whetstone (3000#) Abrasive: WA (White Alumina) This is the Tanaka Toishi Kogyosho original artificial whetstone, "White Story #3000." It contains high-quality domestic abrasive materials, providing high grinding power and a quick finish. Due to the Resinoite method, please refrain from soaking the whetstone in water for extended periods. This may cause the bond to deteriorate, leading to softening or cracking. This is a B-grade product, so there may be slight dimensional variations or stains. The performance is the same as the regular product. Please understand this before purchasing. Application: Medium sharpening for various blades Available for immediate purchase.