{"product_id":"octagonal-wa-handle-135mm-black-ebony-black-buffalo-horn","title":"Handmade Octagonal Wa-Handle 135mm - Black Ebony with Black Buffalo Horn Ferrule","description":"\u003cp data-path-to-node=\"4\"\u003e\u003cspan\u003eA study in refined,\u003c\/span\u003e\u003cspan\u003e monochromatic minimalism,\u003c\/span\u003e\u003cspan\u003e this 135mm octagonal (\u003c\/span\u003e\u003ci data-path-to-node=\"4\" data-index-in-node=\"68\"\u003eHakkaku\u003c\/i\u003e\u003cspan\u003e) Japanese knife handle is crafted from select solid black ebony wood and crowned with a seamless black water buffalo horn ferrule (\u003c\/span\u003e\u003ci data-path-to-node=\"4\" data-index-in-node=\"207\"\u003etsuno\u003c\/i\u003e\u003cspan\u003e).\u003c\/span\u003e\u003cspan\u003e Celebrated as the gold standard of Japanese handle woods,\u003c\/span\u003e\u003cspan\u003e natural ebony provides exceptional density,\u003c\/span\u003e\u003cspan\u003e natural water repellence,\u003c\/span\u003e\u003cspan\u003e and a glass-smooth hand feel that counterbalances forward-heavy forged blades with effortless tactile stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cspan\u003eFinished with crisp eight-sided geometry for positive finger indexing,\u003c\/span\u003e\u003cspan\u003e this handle is pre-machined with a \u003c\/span\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"106\" class=\"\"\u003e12mm x 3.5mm primary tang slot accompanied by an internal relief hole\u003c\/b\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cspan\u003e This specialized channel configuration accommodates standard forged Japanese tang shoulders while giving excess epoxy or hot-melt adhesive room to displace safely during installation—preventing hydraulic pressure fractures in the horn or wood.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-path-to-node=\"7\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eSolid Black Ebony Body:\u003c\/b\u003e\u003cspan\u003e Hand-turned from dense natural ebony (\u003c\/span\u003e\u003ci data-path-to-node=\"8,0,0\" data-index-in-node=\"62\"\u003eDiospyros\u003c\/i\u003e\u003cspan\u003e spp.\u003c\/span\u003e\u003cspan\u003e),\u003c\/span\u003e\u003cspan\u003e delivering natural moisture resistance,\u003c\/span\u003e\u003cspan\u003e rich obsidian tones,\u003c\/span\u003e\u003cspan\u003e and the necessary counterweight mass to bring the knife's balance point closer to the heel.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eMatched Black Buffalo Horn Ferrule:\u003c\/b\u003e\u003cspan\u003e Capped with an authentic,\u003c\/span\u003e\u003cspan\u003e solid black water buffalo horn ferrule.\u003c\/span\u003e\u003cspan\u003e Hand-leveled and buffed to a flush,\u003c\/span\u003e\u003cspan\u003e seamless transition that forms a watertight barrier at the tang entry.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eErgonomic Octagonal (Hakkaku) Profile:\u003c\/b\u003e\u003cspan\u003e Symmetrical eight-faceted geometry naturally registers into the finger joints,\u003c\/span\u003e\u003cspan\u003e providing tactile edge-angle alignment,\u003c\/span\u003e\u003cspan\u003e slip resistance,\u003c\/span\u003e\u003cspan\u003e and comfort for both pinch grips and handle holds.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003ePre-Machined 12mm x 3.5mm Slot \u0026amp; Relief Cavity:\u003c\/b\u003e\u003cspan class=\"\"\u003e Slotted to fit standard forged kitchen knife tangs,\u003c\/span\u003e\u003cspan\u003e backed by an interior relief chamber that captures displaced adhesive to prevent internal hydraulic pressure from cracking the ferrule during seat fitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eVersatile 135mm Proportions:\u003c\/b\u003e\u003cspan\u003e The benchmark mid-size handle format,\u003c\/span\u003e\u003cspan\u003e engineered to provide visual harmony and balanced handling for 165mm–180mm Santokus,\u003c\/span\u003e\u003cspan\u003e Bunkas,\u003c\/span\u003e\u003cspan\u003e and Nakiris,\u003c\/span\u003e\u003cspan class=\"\"\u003e as well as 180mm–210mm Gyutos and long Pettys.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-path-to-node=\"10\" class=\"\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable data-path-to-node=\"11\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,1,0,0\"\u003e\u003cb data-path-to-node=\"11,1,0,0\" data-index-in-node=\"0\"\u003eProduct Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,1,1,0\"\u003eJapanese Wa-Handle (Replacement \/ Custom Component)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,2,0,0\"\u003e\u003cb data-path-to-node=\"11,2,0,0\" data-index-in-node=\"0\"\u003eProfile\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,2,1,0\"\u003eOctagonal (Hakkaku)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,3,0,0\"\u003e\u003cb data-path-to-node=\"11,3,0,0\" data-index-in-node=\"0\"\u003eTotal Length\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,3,1,0\"\u003e135mm (~5.31 in)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,4,0,0\"\u003e\u003cb data-path-to-node=\"11,4,0,0\" data-index-in-node=\"0\"\u003eHandle Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,4,1,0\"\u003eNatural Black Ebony (\u003ci data-path-to-node=\"11,4,1,0\" data-index-in-node=\"21\"\u003eDiospyros\u003c\/i\u003e spp.)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,5,0,0\"\u003e\u003cb data-path-to-node=\"11,5,0,0\" data-index-in-node=\"0\"\u003eFerrule Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,5,1,0\"\u003eNatural Black Water Buffalo Horn (\u003ci data-path-to-node=\"11,5,1,0\" data-index-in-node=\"34\"\u003eTsuno\u003c\/i\u003e)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,6,0,0\"\u003e\u003cb data-path-to-node=\"11,6,0,0\" data-index-in-node=\"0\"\u003eTang Slot Dimensions\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,6,1,0\"\u003e12mm (W) x 3.5mm (H)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,0,0\"\u003e\u003cb data-path-to-node=\"11,7,0,0\" data-index-in-node=\"0\"\u003eInternal Cavity\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,1,0\"\u003ePre-Slotted Entry with Secondary Internal Relief Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,8,0,0\"\u003e\u003cb data-path-to-node=\"11,8,0,0\" data-index-in-node=\"0\"\u003eTypical Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,8,1,0\"\u003e165mm–180mm Santoku \/ Bunka \/ Nakiri; 180mm–210mm Gyuto; 150mm Petty\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,9,0,0\"\u003e\u003cb data-path-to-node=\"11,9,0,0\" data-index-in-node=\"0\"\u003eOrigin\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,9,1,0\"\u003eHandcrafted in Japan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 data-path-to-node=\"13\"\u003eInstallation \u0026amp; Fitting Guidelines\u003c\/h2\u003e\n\u003cul data-path-to-node=\"14\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,0,0\"\u003e\u003cb data-path-to-node=\"14,0,0\" data-index-in-node=\"0\" class=\"\"\u003eTang Sizing \u0026amp; Adjustment:\u003c\/b\u003e\u003cspan class=\"\"\u003e Hand-forged knife tangs vary between smiths.\u003c\/span\u003e\u003cspan\u003e If your blade’s tang shoulders exceed 12mm x 3.\u003c\/span\u003e\u003cspan\u003e5mm,\u003c\/span\u003e\u003cspan class=\"\"\u003e carefully ease the horn opening using a narrow flat needle file to achieve a snug friction fit before gluing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,1,0\"\u003e\u003cb data-path-to-node=\"14,1,0\" data-index-in-node=\"0\" class=\"\"\u003eInternal Relief Channel Function:\u003c\/b\u003e\u003cspan\u003e The internal relief cavity directly behind the slot provides room for displaced bonding agents,\u003c\/span\u003e\u003cspan\u003e eliminating back-pressure that could otherwise stress or split the dense horn collar.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,2,0\"\u003e\u003cb data-path-to-node=\"14,2,0\" data-index-in-node=\"0\"\u003eAdhesive Selection:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"14,2,1\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,2,1,0,0\"\u003e\u003cb data-path-to-node=\"14,2,1,0,0\" data-index-in-node=\"0\" class=\"\"\u003eTraditional \/ Reversible:\u003c\/b\u003e\u003cspan\u003e Use jeweler's hot-melt glue or wood glue blended with fine ebony sawdust for an authentic seat that can be removed in the future with gentle dry heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,2,1,1,0\"\u003e\u003cb data-path-to-node=\"14,2,1,1,0\" data-index-in-node=\"0\"\u003ePermanent:\u003c\/b\u003e\u003cspan\u003e Marine-grade two-part epoxy (e.\u003c\/span\u003e\u003cspan\u003eg.,\u003c\/span\u003e\u003cspan\u003e G\/flex 650) creates a permanent,\u003c\/span\u003e\u003cspan\u003e waterproof seal against moisture ingress.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,3,0\"\u003e\u003cb data-path-to-node=\"14,3,0\" data-index-in-node=\"0\"\u003eWood \u0026amp; Horn Maintenance:\u003c\/b\u003e\u003cspan\u003e Both black ebony and buffalo horn are organic materials sensitive to extreme humidity swings.\u003c\/span\u003e\u003cspan\u003e Never submerge the handle in water or run it through a dishwasher.\u003c\/span\u003e\u003cspan\u003e Maintain its deep black luster by periodically conditioning the wood and horn with pure camellia (tsubaki) oil,\u003c\/span\u003e\u003cspan\u003e mineral oil,\u003c\/span\u003e\u003cspan\u003e or board wax.e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Burrfection","offers":[{"title":"Default Title","offer_id":67838658248934,"sku":null,"price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/9608\/6502\/files\/080A0365.jpg?v=1792780149","url":"https:\/\/gyuto.com\/products\/octagonal-wa-handle-135mm-black-ebony-black-buffalo-horn","provider":"Gyuto.com","version":"1.0","type":"link"}