{"product_id":"natural-whetstone-ohira-uchigumori-2632g-38245","title":"Natural Whetstone Ohira Uchigumori 2632g | Made in Japan, Kyoto, Shohonyama","description":"\u003cp\u003eShohonyama Ōhira Uchigumori Japanese Natural Whetstone — Tokkyū Grade (2,632g)\u003cbr\u003e\nApprox. 209 × 77 × 69 mm\u003c\/p\u003e\n\u003cp\u003eAn authentic, extra-thick Tokkyū (Special Grade) Uchigumori natural whetstone from the legendary Ōhira Mine in Kyoto, Japan.\u003c\/p\u003e\n\u003cp\u003eThis premium stone displays a clean, classic appearance that is characteristic of the finest Uchigumori stones. Its substantial thickness and impressive weight make it an increasingly rare find in today's market.\u003c\/p\u003e\n\u003cp\u003eŌhira Uchigumori stones are highly revered and have traditionally been used in the final stages of Japanese sword polishing. Being slightly harder than typical Uchigumori, this particular stone offers both exceptional polishing power and a highly refined finish.\u003c\/p\u003e\n\u003cp\u003eIt produces a flawless, misty Kasumi finish that beautifully highlights the Hamon (temper line) and Jihada (forged steel grain pattern).\u003c\/p\u003e\n\u003cp\u003eSpecifications \u0026amp; Features\u003c\/p\u003e\n\u003cp\u003eOrigin: Shohonyama, Ōhira Mine (Kyoto, Japan)\u003c\/p\u003e\n\u003cp\u003eType: Uchigumori (with fine hairline suji)\u003c\/p\u003e\n\u003cp\u003eGrade: Tokkyū (Special Grade)\u003c\/p\u003e\n\u003cp\u003eFormat: Extra-Thick Block\u003c\/p\u003e\n\u003cp\u003eDimensions: Approx. 209 × 77 × 69 mm\u003c\/p\u003e\n\u003cp\u003eWeight: 2,632 g\u003c\/p\u003e\n\u003cp\u003eHardness: Medium to Semi-Hard\u003cbr\u003e\n(Excellent polishing response and versatility)\u003c\/p\u003e\n\u003cp\u003eCondition: Unused\u003cbr\u003e\n(Professionally lapped, chamfered, and ready for immediate use)\u003c\/p\u003e\n\u003cp\u003eSuji (Lines): Fine hairline only\u003cbr\u003e\n(Cosmetic in nature and completely safe for sharpening)\u003c\/p\u003e\n\u003cp\u003eProtection: Sides and bottom sealed with Ishisan premium water-based protective lacquer\u003c\/p\u003e\n\u003cp\u003ePerformance \u0026amp; Application\u003c\/p\u003e\n\u003cp\u003e• Traditional finishing stone for Japanese sword polishing\u003c\/p\u003e\n\u003cp\u003e• Produces a highly refined and elegant Kasumi finish\u003c\/p\u003e\n\u003cp\u003e• Enhances visibility of the Hamon and Jihada\u003c\/p\u003e\n\u003cp\u003e• Excellent polishing performance with controlled cutting action\u003c\/p\u003e\n\u003cp\u003e• Ideal for premium kitchen knives and laminated blades\u003c\/p\u003e\n\u003cp\u003e• Suitable for woodworking chisels (Nomi) and plane blades (Kanna)\u003c\/p\u003e\n\u003cp\u003e• Smooth sharpening feel with excellent finishing capability\u003c\/p\u003e\n\u003cp\u003eRecommended For\u003c\/p\u003e\n\u003cp\u003eJapanese Sword Polishing\u003cbr\u003e\nTraditional restoration and finishing work for Nihonto and other fine blades.\u003c\/p\u003e\n\u003cp\u003eKitchen Knives\u003cbr\u003e\nCreating a premium Kasumi finish on high-end carbon steel and laminated knives.\u003c\/p\u003e\n\u003cp\u003eCarpentry Tools\u003cbr\u003e\nPrecision finishing for chisels, plane irons, and other woodworking tools.\u003c\/p\u003e\n\u003cp\u003eCollectors\u003cbr\u003e\nA rare, investment-grade specimen combining outstanding performance and collectible value.\u003c\/p\u003e\n\u003cp\u003eCollector's Note\u003c\/p\u003e\n\u003cp\u003eHigh-grade Ōhira Uchigumori stones of this size, thickness, and condition have become increasingly difficult to source. The combination of Tokkyū grading, exceptional dimensions, and practical usability makes this an especially desirable example.\u003c\/p\u003e\n\u003cp\u003eEqually suited for professional polishing work and serious collections, this stone represents the enduring legacy of Kyoto's most celebrated natural whetstone region.\u003c\/p\u003e\n\u003cp\u003eAuthentic Shohonyama Ōhira Uchigumori — Tokkyū Grade.\u003cbr\u003e\nRare extra-thick specimen with excellent polishing characteristics.\u003cbr\u003e\nMassive 2,632 g natural whetstone from Kyoto, Japan.\u003cbr\u003e\nA premium collector-grade and professional-use Japanese natural finishing stone.\u003c\/p\u003e","brand":"DAIKUDOU","offers":[{"title":"Default Title","offer_id":44564344307754,"sku":null,"price":1780.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/5787\/8570\/files\/il_fullxfull.7254612218_kd70_8ee2a814-be14-4358-8e49-cb9175f045f2.jpg?v=1783923935","url":"https:\/\/daikudou.com\/products\/natural-whetstone-ohira-uchigumori-2632g-38245","provider":"DAIKUDOU","version":"1.0","type":"link"}