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alt="A Miyazaki kurouchi rentetsu shirogami#1 gyuto 210mm with a dark, textured blade and a rectangular handle rests on a grey surface."
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alt="A Miyazaki kurouchi rentetsu shirogami#1 gyuto 210mm with a dark, textured blade and a rectangular handle rests on a grey surface."
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alt="A hand-forged Miyazaki rentetsu gyuto kitchen knife with a dark handle is mounted vertically on a dark background. Beside it, a white certificate with Japanese calligraphy and a red stamp is displayed, with English text on the right."
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alt="A hand-forged Miyazaki rentetsu gyuto kitchen knife with a dark handle is mounted vertically on a dark background. Beside it, a white certificate with Japanese calligraphy and a red stamp is displayed, with English text on the right."
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alt="A close-up view of a large, dark Miyazaki rentetsu gyuto kitchen knife with a textured surface, placed on a plain gray background."
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alt="A close-up view of a large, dark Miyazaki rentetsu gyuto kitchen knife with a textured surface, placed on a plain gray background."
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alt="A close-up view of a Miyazaki rentetsu gyuto Japanese-style chefs knife with a dark, textured steel blade and a black handle, placed on a plain gray surface."
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alt="A close-up view of a Miyazaki rentetsu gyuto Japanese-style chefs knife with a dark, textured steel blade and a black handle, placed on a plain gray surface."
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alt="Close-up of a Miyazaki rentetsu gyuto blade shows intricate patterns and textures on the metal, with a textured area near the edge and a smoother polished section above. The background is plain and dark."
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loading="lazy"
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alt="Close-up of a Miyazaki rentetsu gyuto blade shows intricate patterns and textures on the metal, with a textured area near the edge and a smoother polished section above. The background is plain and dark."
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alt="A close-up view of the pointed tip of a Miyazaki rentetsu gyuto blade, showing detailed patterns and textures in the steel against a plain gray background."
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alt="A close-up view of the pointed tip of a Miyazaki rentetsu gyuto blade, showing detailed patterns and textures in the steel against a plain gray background."
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alt="A close-up of a Japanese-style Miyazaki rentetsu gyuto chef’s knife with a dark, textured handle and a tapered blade, set against a gray, textured background."
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loading="lazy"
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alt="A close-up of a Japanese-style Miyazaki rentetsu gyuto chef’s knife with a dark, textured handle and a tapered blade, set against a gray, textured background."
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alt="A close-up of a Miyazaki rentetsu gyuto Japanese-style kitchen knife with a dark, weathered blade and textured patterns, photographed on a plain gray surface."
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alt="A close-up of a Miyazaki rentetsu gyuto Japanese-style kitchen knife with a dark, weathered blade and textured patterns, photographed on a plain gray surface."
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alt="A handcrafted Miyazaki rentetsu gyuto kitchen knife with a dark wooden handle and a textured, partially polished blade rests on a gray surface."
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alt="A handcrafted Miyazaki rentetsu gyuto kitchen knife with a dark wooden handle and a textured, partially polished blade rests on a gray surface."
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loading="lazy"
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alt="A close-up of a Miyazaki rentetsu gyuto kitchen knife with a dark handle, set against a plain gray background. The blade is angled diagonally and occupies most of the image."
class="image-magnify-hover"
loading="lazy"
width="2048"
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alt="A close-up of a Miyazaki rentetsu gyuto kitchen knife with a dark handle, set against a plain gray background. The blade is angled diagonally and occupies most of the image."
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loading="lazy"
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alt="Choil shot of a Miyazaki rentetsu gyuto blade against a plain, light gray background. The image emphasizes the thinness and craftsmanship of the blade’s tip."
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alt="Choil shot of a Miyazaki rentetsu gyuto blade against a plain, light gray background. The image emphasizes the thinness and craftsmanship of the blade’s tip."
The Miyazaki kurouchi tanjirentetsu shirogami#1 gyuto 210mm 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 204g with a 206mm cutting edge, it's a compact but hefty knife. 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: 354mm Blade length (heel to tip): 206mm (8.1") Blade height at heel: 49.3mm Spine thickness: at the handle: 3.9mm at the heel: 3.6mm midway: 2.7mm 1cm from the tip: 0.9mm Weight: 204g Edge/bevel: 50:50 Handle: octagonal mono ebony Hand orientation: ambidextrous Saya / sheath: none
Notes: a. For the care and maintenance of Miyazaki Kajiya 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.
