Kurogane Kazura

Kurogane Kazura

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      Kurogane Kazura is the stationery line of Inoue Tool Works, a Japanese metalworking company founded in 1911. Its pens and ruler are hand-forged from stainless steel, featuring a distinctive fire-forged texture.

      3 products
      Kurogane Kazura Hand-Forged Steel Ruler by Inoue Tool Works with a hammered finish and kanji numerals.
      Macro close-up of the 3mm thick Kurogane Kazura metal ruler, showing the hammered texture and millimeter scale.
      Kurogane Kazura Hand-Forged Steel Ruler
      from $189.00
      Kurogane Kazura Maki-hari EDC pens in Forged Finish with leather covers lying horizontally against a white background.
      Horizontal size comparison of the longer 130mm and compact 110mm Kurogane Kazura Forged Finish ballpoint pens, showing their bare tapered writing tips.
      Kurogane Kazura Maki-hari Ballpoint Pen - Forged Finish
      from $229.00
      Kurogane Kazura Maki-hari EDC pens with leather covers lying horizontally against a white background.
      Horizontal size comparison of the Kurogane Kazura Maki-hari Ballpoint Pen in Hammered Finish, showing the 130mm and compact 110mm options.
      Kurogane Kazura Maki-hari Ballpoint Pen - Hammered Finish
      from $239.00

      About Kurogane Kazura

      Kurogane Kazura is the stationery brand of Inoue Tool Works, a Japanese metalworking company founded in 1911. Originally producing traditional hand tools before expanding into chisels, crowbars and attachments for power tools, the company now brings its decades of fire-forging techniques to pens and desk tools.

      Maki-hari Ballpoint Pens

      The Maki-hari pen is made using a technique originally developed for Japan's first matchlock guns in the 16th century, in which metal is rolled into a tube. It comes in a hammered finish and a forged finish, each in two lengths (110 mm and 130 mm), and includes a genuine leather cap.

      Hand-Forged Steel Ruler

      Made from 3 mm thick stainless steel, the ruler has a laser-engraved scale numbered in traditional Japanese kanji. It comes in 140 mm and 170 mm lengths, with a snug-fitting genuine leather case.

      Forged by Fire, Shaped by Use

      Forging above 1,000°C oxidises the stainless steel to brown and black tones. With use, natural wear may reveal the original silver beneath, and the surface gradually develops a unique patina. Each piece is handmade, so colour and surface vary slightly from one to the next. Every piece arrives in a paulownia wooden box, ready to give as a gift.