{"product_id":"octagonal-wa-handle-138mm-ebony-rosewood","title":"Handmade Octagonal Wa-Handle 138mm - Natural Hardwood \u0026 Buffalo Horn (Ebony \/ Rosewood)","description":"\u003cp data-path-to-node=\"4\"\u003e\u003cspan\u003eA versatile mid-length Japanese replacement handle,\u003c\/span\u003e\u003cspan\u003e this 138mm octagonal (\u003c\/span\u003e\u003ci data-path-to-node=\"4\" data-index-in-node=\"74\"\u003eHakkaku\u003c\/i\u003e\u003cspan\u003e) wa-handle is hand-turned from premium natural hardwoods and paired with a polished water buffalo horn ferrule (\u003c\/span\u003e\u003ci data-path-to-node=\"4\" data-index-in-node=\"194\"\u003etsuno\u003c\/i\u003e\u003cspan\u003e).\u003c\/span\u003e\u003cspan\u003e Available in either dense,\u003c\/span\u003e\u003cspan\u003e obsidian Black Ebony or warm,\u003c\/span\u003e\u003cspan\u003e figured Rosewood,\u003c\/span\u003e\u003cspan\u003e this handle provides an ergonomic grip,\u003c\/span\u003e\u003cspan\u003e natural water repellence,\u003c\/span\u003e\u003cspan\u003e and the necessary counterweight to pull the balance point of forged blades closer to the heel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cspan\u003eTailored for custom knife projects and clean re-handling,\u003c\/span\u003e\u003cspan\u003e the collar is pre-machined with a \u003c\/span\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"92\"\u003e12mm x 3mm tang entry slot backed by an internal secondary relief chamber\u003c\/b\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cspan\u003e This configuration accommodates standard forged Japanese tang shoulders while giving displaced adhesive room to expand freely during installation,\u003c\/span\u003e\u003cspan\u003e 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\"\u003eTwo Select Hardwood Options:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8,0,1\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,1,0,0\"\u003e\u003cb data-path-to-node=\"8,0,1,0,0\" data-index-in-node=\"0\"\u003eBlack Ebony:\u003c\/b\u003e\u003cspan\u003e Dense,\u003c\/span\u003e\u003cspan\u003e heavy,\u003c\/span\u003e\u003cspan\u003e and naturally oily with an ultra-smooth finish.\u003c\/span\u003e\u003cspan\u003e Adds substantial counterweight mass to balance forward-leaning kitchen blades.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,1,1,0\"\u003e\u003cb data-path-to-node=\"8,0,1,1,0\" data-index-in-node=\"0\"\u003eNatural Rosewood:\u003c\/b\u003e\u003cspan\u003e Rich reddish-brown tone featuring deep espresso grain streaks and natural resinous oils that resist kitchen moisture.\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=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eGenuine Water Buffalo Horn Ferrule:\u003c\/b\u003e\u003cspan\u003e Hand-fitted and polished flush with the octagonal facets,\u003c\/span\u003e\u003cspan\u003e creating a seamless,\u003c\/span\u003e\u003cspan\u003e watertight transition 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 joints of the fingers,\u003c\/span\u003e\u003cspan\u003e providing tactile edge-angle alignment and slip resistance during extended prep work.\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 3mm Slot \u0026amp; Relief Cavity:\u003c\/b\u003e\u003cspan\u003e Accommodates traditional forged kitchen knife tangs,\u003c\/span\u003e\u003cspan\u003e while the interior relief cavity captures excess epoxy or hot-melt adhesive to eliminate internal pressure buildup.\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 138mm Format:\u003c\/b\u003e\u003cspan\u003e A balanced mid-size handle proportioned for 165mm–180mm Santokus,\u003c\/span\u003e\u003cspan\u003e Bunkas,\u003c\/span\u003e\u003cspan\u003e and Nakiris,\u003c\/span\u003e\u003cspan\u003e as well as 180mm–210mm Gyutos and long utility blades.\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\"\u003e138mm (~5.43 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\"\u003eWood Options\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.) \/ Natural Rosewood (\u003ci data-path-to-node=\"11,4,1,0\" data-index-in-node=\"57\"\u003eDalbergia\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\"\u003eGenuine Natural Water Buffalo Horn (\u003ci data-path-to-node=\"11,5,1,0\" data-index-in-node=\"36\"\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 3mm (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\"\u003ePrecision Pre-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\" class=\"\"\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 Forged Japanese tang profiles vary by workshop.\u003c\/span\u003e\u003cspan class=\"\"\u003e If your knife’s tang shoulders exceed 12mm x 3mm,\u003c\/span\u003e\u003cspan class=\"\"\u003e use a narrow flat needle file to gently widen the horn entrance mortise until achieving a flush friction fit.\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\"\u003eRelief Channel Function:\u003c\/b\u003e\u003cspan\u003e When driving the tang home with adhesive,\u003c\/span\u003e\u003cspan\u003e the internal relief cavity provides space for displaced glue,\u003c\/span\u003e\u003cspan\u003e preventing hydraulic resistance from forcing the handle off or cracking the horn ferrule.\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\"\u003eTraditional \/ Reversible:\u003c\/b\u003e\u003cspan\u003e Jeweler’s hot-melt glue or wood glue mixed with fine matching wood dust allows for clean,\u003c\/span\u003e\u003cspan\u003e heat-reversible removal in the future.\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 100% waterproof,\u003c\/span\u003e\u003cspan\u003e permanent installation.\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\"\u003eNatural Material Maintenance:\u003c\/b\u003e\u003cspan\u003e Natural wood and buffalo horn are moisture-sensitive organic materials.\u003c\/span\u003e\u003cspan\u003e Avoid prolonged soaking or dishwasher cycles.\u003c\/span\u003e\u003cspan\u003e Maintain surface luster and prevent moisture checking by periodically conditioning the handle with pure camellia oil,\u003c\/span\u003e\u003cspan\u003e food-grade mineral oil,\u003c\/span\u003e\u003cspan\u003e or board wax.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Burrfection","offers":[{"title":"Ebony","offer_id":67838951981286,"sku":null,"price":75.0,"currency_code":"USD","in_stock":true},{"title":"Rosewood","offer_id":67838952014054,"sku":null,"price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/9608\/6502\/files\/080A0367.jpg?v=1792780452","url":"https:\/\/gyuto.com\/products\/octagonal-wa-handle-138mm-ebony-rosewood","provider":"Gyuto.com","version":"1.0","type":"link"}