{"product_id":"kurogane-kazura-hand-forged-steel-ruler","title":"Kurogane Kazura Hand-Forged Steel Ruler with Leather Case \/ Inoue Tool Works","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eNotice: \u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003eDue to high demand, the inch version is currently being restocked. The next shipment will begin in mid-October.\u003c\/strong\u003e \u003c\/span\u003e\u003cstrong\u003eOther items in the same order will ship together at that time — please order separately if you need them sooner.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eEstablished in 1911 as Inoue Tool Works, a manufacturer of traditional Higonokami knives, the company’s main products later shifted to construction and civil engineering tools such as chisels and crowbars. Today, it primarily produces attachments for power tools.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0703\/3454\/5985\/files\/3021916aa7973683bb3b17bc56f94b82_480x480.jpg?v=1778732630\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e“Kurogane Kazura” is the company’s stationery brand, created by applying the fire-forging techniques used in the production of knives and cutlery, a craft the company has cultivated since its founding.\u003c\/p\u003e\n\u003cp\u003eThis 15cm ruler is crafted from 3mm thick stainless steel and hand-forged with a hammered finish. The markings are laser-engraved, and the numbers are inscribed in traditional Japanese kanji: “零, 伍, 拾, 拾伍.”\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"BLACK WOODPENCIL HB (With Eraser)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0703\/3454\/5985\/files\/kurogane-kazura-hand-forged-steel-ruler-with-leather-case-15cm-inoue-tool-works-detail-3_480x480.jpg?v=1779439389\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe hammered texture and solid weight provide a satisfying sense of ownership. The stainless steel (SUS304) is forged at over 1000°C, causing the surface to oxidize at high temperatures and develop brown to black tones. Natural wear may reveal the original silver color, and over time, the surface will develop a patina, adding even more depth to its antique charm.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"BLACK WOODPENCIL HB (With Eraser)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0703\/3454\/5985\/files\/kurogane-kazura-hand-forged-steel-ruler-with-leather-case-15cm-inoue-tool-works-detail_480x480.jpg?v=1779439302\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cp\u003eAs each ruler is handmade, surface variations such as color unevenness, processing marks, and small scratches may occur, making each piece unique. The ruler comes with a genuine leather case and is housed in a paulownia box, making it perfect for gifting.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"BLACK WOODPENCIL HB (With Eraser)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0703\/3454\/5985\/files\/kurogane-kazura-hand-forged-steel-ruler-with-leather-case-15cm-inoue-tool-works-package-3_480x480.jpg?v=1779439566\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003ch5\u003eImportant Notes\u003c\/h5\u003e\n\u003cp\u003e- About Kurogane Kazura Forged Products\u003cbr\u003eWhen stainless steel is hand-forged at over 1000°C, the surface undergoes high-temperature oxidation, producing brown to black tones. Natural wear may reveal the original silver color. Over time, the surface will also develop a patina, enhancing the antique look and depth of the piece.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eSize \u0026amp; Detail\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e17cm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e•Dimensions: (Approx.) 170 × 23.5 × 3mm \/ Box: 215 × 63 × 20mm\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e• Weight: (Approx.) 90g\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e• Metric notation\u003cbr\u003e• Other: Scale goes up to 170mm (Scale markings: Zero\/Five\/Ten)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e13cm\u003c\/strong\u003e\u003cbr\u003e• Dimensions: (Approx.) 140mm (length) x 21.5mm (width)\u003cbr\u003e• Weight: (Approx.) 65g\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e• Metric notation\u003cbr\u003e• Other: Scale goes up to 130mm (Scale markings: Zero\/Five\/Ten)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6.3 in.\u003c\/strong\u003e\u003cbr\u003e• Dimensions: (Approx.) 6.69 × 0.93 × 0.12 in \/ Box: 8.46 × 2.48 × 0.79 in\u003cbr\u003e• Weight: (Approx.) 3.2 oz\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e• Inch notation\u003cbr\u003e• Other: Scale goes up to 6.3in (Scale markings: Zero\/Three\/Six)\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003eAbout the Product\u003c\/h5\u003e\n\u003cp\u003eEach product is handmade, so surface variations such as color unevenness, processing marks, and small scratches may occur. Individual differences between items are also part of the product’s charm.\u003c\/p\u003e\n\u003ch5\u003eCare Instructions\u003c\/h5\u003e\n\u003cp\u003eStainless steel (SUS304) is not completely rust-proof. Due to the high temperatures used during forging, it is more prone to rust compared to standard silver-colored stainless steel. If rust appears, wipe it off with a cloth. For long-term storage, clean the surface before storing.\u003c\/p\u003e\n\u003ch5\u003eMaterials\u003c\/h5\u003e\n\u003cp\u003eStainless steel\u003c\/p\u003e","brand":"Inoue Tool Works","offers":[{"title":"6.3 in. (Shipping from October 2026)","offer_id":44239503654977,"sku":"4595433838024","price":239.0,"currency_code":"USD","in_stock":true},{"title":"17cm","offer_id":44094772936769,"sku":"4560342858852","price":239.0,"currency_code":"USD","in_stock":false},{"title":"13cm","offer_id":44094772969537,"sku":"4560342858845","price":199.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/3454\/5985\/files\/kurogane-kazura-hand-forged-steel-ruler-with-leather-case-15cm-inoue-tool-works.jpg?v=1779439230","url":"https:\/\/fudekami.com\/products\/kurogane-kazura-hand-forged-steel-ruler","provider":"FUDEKAMI STATIONERY","version":"1.0","type":"link"}