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alt="A Miyazaki kurouchi rentetsu shirogami#1 gyuto 245mm with a dark wooden handle and a patterned, slightly reflective blade rests on a plain, dark gray surface, showcasing its artisanal craftsmanship."
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alt="A Miyazaki kurouchi rentetsu shirogami#1 gyuto 245mm with a dark wooden handle and a patterned, slightly reflective blade rests on a plain, dark gray surface, showcasing its artisanal craftsmanship."
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alt="A hand-forged Japanese kitchen knife displayed vertically on a black rectangular stand, accompanied by a paper with Japanese calligraphy and English text detailing the artisan, materials, and creation date."
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alt="A hand-forged Japanese kitchen knife displayed vertically on a black rectangular stand, accompanied by a paper with Japanese calligraphy and English text detailing the artisan, materials, and creation date."
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alt="A close-up of a Japanese-style chef’s knife with a patterned Damascus blade, shown against a plain gray background."
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alt="A close-up of a Japanese-style chef’s knife with a patterned Damascus blade, shown against a plain gray background."
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alt="A close-up view of a Japanese chefs knife blade reveals a distinctive wavy pattern characteristic of Damascus steel against a gray background, highlighting its craftsmanship."
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alt="A close-up view of a Japanese chefs knife blade reveals a distinctive wavy pattern characteristic of Damascus steel against a gray background, highlighting its craftsmanship."
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alt="Close-up of the tip of a Damascus steel knife blade, highlighting unique wavy patterns and intricate textures on the metal, set against a neutral gray background."
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alt="Close-up of the tip of a Damascus steel knife blade, highlighting unique wavy patterns and intricate textures on the metal, set against a neutral gray background."
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alt="A close-up of a Japanese chef’s knife with a black handle, placed on a gray surface. The blade features striking Damascus-style wave patterns, highlighting the traditional craftsmanship."
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loading="lazy"
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alt="A close-up of a Japanese chef’s knife with a black handle, placed on a gray surface. The blade features striking Damascus-style wave patterns, highlighting the traditional craftsmanship."
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loading="lazy"
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alt="Close-up of a Japanese chefs knife blade, featuring intricate Damascus patterns and unique texture on the metal surface, set against a gray background."
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alt="Close-up of a Japanese chefs knife blade, featuring intricate Damascus patterns and unique texture on the metal surface, set against a gray background."
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alt="Close-up of the tip of a Damascus steel knife blade, displaying intricate wavy patterns and unique texture on the metal surface, photographed against a plain dark background."
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alt="Close-up of the tip of a Damascus steel knife blade, displaying intricate wavy patterns and unique texture on the metal surface, photographed against a plain dark background."
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alt="Close-up of a Japanese-style kitchen knife with a dark blade showcasing a striking wavy pattern along the edge, set against a plain gray background."
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alt="Close-up of a Japanese-style kitchen knife with a dark blade showcasing a striking wavy pattern along the edge, set against a plain gray background."
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alt="A close-up view of a Japanese-style chef’s knife featuring a dark, patterned blade and a straight edge, set against a plain gray background for an elegant display."
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alt="A close-up view of a Japanese-style chef’s knife featuring a dark, patterned blade and a straight edge, set against a plain gray background for an elegant display."
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loading="lazy"
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alt="A Japanese-style kitchen knife with a dark wooden handle and a patterned, slightly reflective blade is displayed on a gray surface. Intricate wavy patterns near the edge highlight its artisanal craftsmanship."
class="image-magnify-hover"
loading="lazy"
width="2048"
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alt="A Japanese-style kitchen knife with a dark wooden handle and a patterned, slightly reflective blade is displayed on a gray surface. Intricate wavy patterns near the edge highlight its artisanal craftsmanship."
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alt="A close-up view of the metallic blade's edge against a plain, neutral gray background. The metal surface reflects light, highlighting fine details along the blade."
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alt="A close-up view of the metallic blade's edge against a plain, neutral gray background. The metal surface reflects light, highlighting fine details along the blade."
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alt="A close-up view of a kitchen knife blade set against a plain, gray background. The blade is angled diagonally across the image, showcasing its thin, pointed edge."
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alt="A close-up view of a kitchen knife blade set against a plain, gray background. The blade is angled diagonally across the image, showcasing its thin, pointed edge."
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alt="Choil shot of a knife blade, photographed from above, with the edge facing upward against a plain, light gray background."
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The Miyazaki kurouchi tanjirentetsu shirogami#1 gyuto 245mm is a Japanese chef's knife hand-forged in Nagasaki by Haruki Miyazaki. The blade has a Shirogami#1 carbon steel core clad in wrought iron (rentetsu). Shirogami#1 has one of the highest carbon contents among Japanese knife steels, known for taking a very fine edge and excellent edge holding. The etched finish brings out the wrought iron's distinctive wood-like grain. At 296g with a 248mm cutting edge, it's a hefty knife with an authoritative presence in hand. Fitted with an octagonal mono ebony handle.
Rentetsu (wrought iron)
Wrought iron was widely used in the 1800s for anchor chains, wagon wheels, and other applications. It is no longer commercially produced, so all wrought iron available today is reclaimed from century-old structures and artifacts. Its fibrous structure creates a distinctive streaky grain, unique to each blade. For this knife, the wrought iron we provided to Miyazaki-san is from the mid-1800s.
Note on Wrought Iron Characteristics
Wrought iron naturally contains slag inclusions. During the forging process, these inclusions may be dislodged, leaving small voids or pockets along the grain lines or on the spine. This is a natural characteristic of wrought iron, not a defect.
Details
Blacksmith:Haruki Miyazaki Producing Area: Nagasaki, Japan Knife type:gyuto Finish: kurouchi Core steel: Shirogami#1 HRC: ~63 Cladding: wrought iron (rentetsu)
Blade and Handle Specs
Overall length: 404mm Blade length (heel to tip): 248mm (9.8") Blade height at heel: 55.1mm Spine thickness: at the handle: 3.6mm at the heel: 3.2mm midway: 2.5mm 1cm from the tip: 1.1mm Weight: 296g Edge/bevel: 50:50 Handle: octagonal mono ebony Hand orientation: ambidextrous Saya / sheath: none
Notes: a. For the care and maintenance of wrought iron gyuto, please refer to our care guide below. b. Slight variations in measurements and surface finish are common in hand-forged Japanese knives. c. Wrought iron naturally contains slag inclusions. During forging, these may be dislodged, leaving small voids or pockets on some pieces. This is a natural characteristic, not a defect.
Shipping & Returns
• Worldwide shipping from Tokyo via EMS/DHL • Ships within 24-48 hours • Online tracking included • 30-day returns on unused items Details
Care Guide
• Use whetstones for sharpening • Use wooden or rubber cutting boards • Keep clean and dry to prevent rust • Avoid cutting bones or frozen foods • Hand wash only - no dishwasher View Complete Care Guide
