{"product_id":"hatsukokoro-nakagawa-blue-1-migaki-kiritsuke-gyuto-225mm","title":"Hatsukokoro Nakagawa Blue #1 Migaki Kiritsuke Gyuto 225mm","description":"\u003ch2\u003eHatsukokoro Nakagawa Blue #1 Migaki Kiritsuke Gyuto 225mm\u003c\/h2\u003e\n\u003cp\u003eThis Sakai-made kiritsuke gyuto pairs the work of two celebrated craftsmen: blacksmith \u003cstrong\u003eSatoshi Nakagawa\u003c\/strong\u003e and sharpener \u003cstrong\u003eMorihiro Hamono\u003c\/strong\u003e. Nakagawa forges a fine-grained Blue #1 carbon-steel core, while Morihiro gives the blade its refined geometry and keen double-bevel edge.\u003c\/p\u003e\n\u003cp\u003eThe blade uses traditional three-layer san-mai construction with reactive soft-iron cladding and a clean migaki polish. Its 225mm Sakai-listed size measures approximately 211mm along the cutting edge, giving it the reach of a compact 240-class gyuto while remaining agile. A low, precise K-tip excels at detail work, and the gently curved edge handles vegetables, herbs, fish, and boneless proteins with ease.\u003c\/p\u003e\n\u003cp\u003eChoose the blade by itself for a custom build, or select one of two individually fitted Prisma Knife art handles. Each Prisma option is a one-of-a-kind pairing made for this knife.\u003c\/p\u003e\n\u003ch2\u003eHandle Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Only:\u003c\/strong\u003e Supplied without a handle and ready for a compatible wa-handle installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrisma Knife — Pink Wood \u0026amp; Rainbow Spacers:\u003c\/strong\u003e Pink-toned wood with a contrasting light ferrule and fine multicolor spacer accents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrisma Knife — Ladybug's Dream:\u003c\/strong\u003e A sculptural olive-wood and translucent purple-resin handle with miniature floral and ladybug details.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Hatsukokoro\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlacksmith:\u003c\/strong\u003e Satoshi Nakagawa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSharpener:\u003c\/strong\u003e Morihiro Hamono\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Sakai, Japan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnife Type:\u003c\/strong\u003e Kiritsuke Gyuto \/ K-tip Gyuto\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size:\u003c\/strong\u003e 225mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured Edge Length:\u003c\/strong\u003e 211mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e Approximately 332mm with a fitted handle; varies by handle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Height at Heel:\u003c\/strong\u003e 45.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpine Thickness at Heel:\u003c\/strong\u003e 2.98mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpine Thickness at Midpoint:\u003c\/strong\u003e 2.63mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpine Thickness Near Tip:\u003c\/strong\u003e 0.58mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured Weight:\u003c\/strong\u003e Approximately 146g with the photographed handle; varies by variant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Steel:\u003c\/strong\u003e Aogami Blue #1 carbon steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCladding:\u003c\/strong\u003e Reactive soft iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Three-layer san-mai\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Migaki polish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e Approximately 63–64 HRC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge:\u003c\/strong\u003e Double bevel, approximately 50\/50\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCare\u003c\/h2\u003e\n\u003cp\u003eBlue #1 and the soft-iron cladding are fully reactive. A natural patina will develop with use. Hand wash only, wipe the blade during prep, and dry it immediately after cleaning. Apply a light coat of food-safe camellia oil before extended storage. Avoid bones, frozen food, twisting cuts, and glass, stone, or ceramic cutting surfaces.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is a 225mm knife measured at 211mm?\u003c\/strong\u003e Sakai makers commonly list blade length from the tip to the machi, while the usable cutting edge is measured from tip to heel. Both measurements describe this same knife.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the blade stainless?\u003c\/strong\u003e No. Both the Blue #1 core and soft-iron cladding are reactive and require prompt drying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho sharpened this knife?\u003c\/strong\u003e Morihiro Hamono performed the sharpening and finishing work; Satoshi Nakagawa forged the blade.\u003c\/p\u003e","brand":"Hatsukokoro","offers":[{"title":"Prisma Knife — Pink Wood \u0026 Rainbow Spacers","offer_id":53820713271520,"sku":"HATS-NAKA-B1-MIG-KG225-PRISMA-PINK","price":549.0,"currency_code":"USD","in_stock":true},{"title":"Prisma Knife — Ladybug's Dream","offer_id":53820713304288,"sku":"HATS-NAKA-B1-MIG-KG225-PRISMA-LADYBUG","price":549.0,"currency_code":"USD","in_stock":true},{"title":"Blade Only","offer_id":53820713238752,"sku":"HATS-NAKA-B1-MIG-KG225-BLADE","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/6720\/0736\/files\/hatsukokoro-nakagawa-blue-1-kiritsuke-225mm-prisma-pink-rainbow-spacer-front.jpg?v=1785991050","url":"https:\/\/tokushuknife.com\/products\/hatsukokoro-nakagawa-blue-1-migaki-kiritsuke-gyuto-225mm","provider":"Tokushu Knife","version":"1.0","type":"link"}