{"product_id":"deep-curve-tachi-mirror-polished-zinc-alloy","title":"Unsharpened Deep-Curve Tachi — Mirror-Polished, Zinc-Alloy Fittings","description":"\u003cp\u003eThe most strongly curved piece in this batch — a 6 cm sori across a 105 cm mount, finished to a high mirror polish.\u003c\/p\u003e\n\u003cp\u003eThe workshop describes the steel only in marketing terms and does not give a grade on its sheet for this SKU. We are not going to convert that into a number, so no steel grade is published here. Everything else below is taken from the workshop sheet.\u003c\/p\u003e\n\u003cp\u003eThe saya is lacquered solid wood and the fittings are cast zinc alloy. The tsuka is bound over synthetic rayskin. The yokote is a polished line rather than a cut geometric transition.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e105 cm \/ 41.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade length\u003c\/td\u003e\n\u003ctd\u003e73.4 cm \/ 28.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade width\u003c\/td\u003e\n\u003ctd\u003e3.21 cm at the base, 2.5 cm at the tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade thickness\u003c\/td\u003e\n\u003ctd\u003e0.77 cm at the base, 0.51 cm at the tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurvature (sori)\u003c\/td\u003e\n\u003ctd\u003e6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade steel\u003c\/td\u003e\n\u003ctd\u003eNot declared by the workshop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade pattern\u003c\/td\u003e\n\u003ctd\u003eIrregular wave pattern (supplier-listed); formation method not confirmed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoshi\u003c\/td\u003e\n\u003ctd\u003eKo-maru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYokote\u003c\/td\u003e\n\u003ctd\u003eSimulated (polished line, not cut)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolish\u003c\/td\u003e\n\u003ctd\u003eMirror finish (workshop-declared)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge\u003c\/td\u003e\n\u003ctd\u003eUnsharpened (display)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFittings\u003c\/td\u003e\n\u003ctd\u003eCast zinc alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSame (rayskin)\u003c\/td\u003e\n\u003ctd\u003eSynthetic rayskin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaya\u003c\/td\u003e\n\u003ctd\u003eLacquered solid wood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplier-listed weight\u003c\/td\u003e\n\u003ctd\u003eSupplier-listed total weight: 1.4 kg; supplier-listed net weight: 1.0 kg. Packaging and saya basis are not specified in the supplier sheet. These figures are not confirmed packed shipping weights.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eHow we specify:\u003c\/em\u003e Dimensions are from the workshop sheet for this SKU. Materials are as declared by the workshop. We do not publish hardness or performance numbers we have not tested.\u003c\/p\u003e\n\u003ch3\u003eCare\u003c\/h3\u003e\n\u003cp\u003eWipe the blade with a light machine oil after handling. Store horizontally, edge up, away from humidity.\u003c\/p\u003e\n\u003ch3\u003eIntended use and safety\u003c\/h3\u003e\n\u003cp\u003eThis blade ships unsharpened, for display and collection. Adults 18+ only. Buyers are responsible for local blade laws and import rules.\u003c\/p\u003e","brand":"Prime Katana","offers":[{"title":"Default Title","offer_id":52347356250410,"sku":"SS-30","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/7459\/7674\/files\/ss-30-catalogue-01.png?v=1787630333","url":"https:\/\/primekatana.com\/products\/deep-curve-tachi-mirror-polished-zinc-alloy","provider":"PRIME KATANA","version":"1.0","type":"link"}