Kyoto Tanba Production Nakashage Toishi (Medium Finishing Stone) Monzen Toishi (Aoto) Blue, Kama To (Sickle Stone) Soft, Special Selection Dimensions: Length 149mm, Width 34mm, Thickness 25mm Weight: 241g Grain: Medium Finishing (3000#↑) Hardness: Soft This whetstone was mined and processed from a mine in Kameoka, Kyoto in the mid-Showa era and has been carefully preserved. It has long been used as a process before finishing blades with a finishing whetstone. This is a specially selected Kama To (sickle stone) that was received from the mining source and selected from many. It has a soft sharpening feel that produces mud quickly. Once the mud appears, it becomes quite easy to sharpen, and you can quickly remove deep scratches from artificial whetstones. It is easy to handle, so even beginners can easily sharpen with it. The finish is Kasumi-style (hazy). Uses: Medium finishing for kitchen knives, surface sharpening for various knives Available for immediate purchase.