Morihei Hishiboshi Hi 12000 Sharpening Stone

The Morihei Hishiboshi Hi 12000 is a fine-grained finishing stone designed for the final polishing of kitchen knives. Used as one of the final steps in a sharpening progression (after #6000 or #8000), it achieves maximum sharpness, a distinct shine, and a high-contrast finish characteristic of the classic kasumi effect. Like other stones in the Hishiboshi Hi series, the 12000 contains a natural material blend, which significantly improves the quality of contact with the blade. During use, the stone creates a fine-grained slurry that allows for precise control of every movement and promotes a refined finish, especially on laminated blades (carbon steel + soft iron). This splash & go stone is ready to use after a single moistening with water. It does not require soaking, which increases ease of use. To improve performance, it is recommended to rub the surface with a leveling plate or a Nagura stone. During sharpening, do not remove the slurry – it contains active abrasive particles, which are crucial to the polishing process. Morihei Hi 12000 provides a high level of precision and controlled abrasion without the risk of excessive material removal. This stone is suitable for users who require not only functional sharpness but also a high aesthetic finish. Compared to the Shapton and Naniwa series, it is distinguished by its thicker (25 mm) and extended life, which translates into greater stability and longer service life. Key features: • #12000 grit – for final edge polishing • Natural feel and precise finish thanks to the addition of jnat • Creates a slurry that supports the polishing process • Splash & go – no soaking required • Leaves a distinct kasumi finish • Greater thickness and life than Shapton and Naniwa • Recommended as the final sharpening step before a leather strop