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Tosa Blue 1 Santoku 165mm

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ABOUT TOSA- Tosa knives are known for their hammer forged technique known as Warikomi, where a glowing piece of cladding is split and the core cutting edge inserted, then forged together by hand. It is a complicated process that requires a high level of finesse and competence.

STEEL BREAKDOWN – Blue Steel is a traditional, high-carbon steel made by Hitachi Metals in Japan. It is the favourite steel of many knife makers and chefs across the world for it’s fantastic edge holding ability, toughness, and ease of sharpening. It contains few stainless elements, and as such will develop a patina, and develop rust spots if left wet after use. It requires a little more care and maintenance than something like VG-10 (Stainless Steel), so consider this when purchasing a Blue Steel knife as your first Japanese knife.


Style: Bunka
Blade Length: 165mm
Overall Length: 311mm
Weight: 133g
Blade Height @ Heel: 48mm
Bevel: Double Bevel
Spine Thickness @ Heel: 3.3mm
Spine Thickness @ Mid: 2.6mm
Spine Thickness 1cm from tip: 1.2mm
Blade Material: Blue 1 Core Carbon Clad, Kurouchi Finish
Handle Material: Right Handed D-Shaped Rosewood
HRC: 63
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  • Handwash in warm water and towel dry
  • Use a sharpening stone (not a honing steel!) to sharpen your knife
  • Do not cut frozen foods and meat bones
  • Do not put the knife in a dishwasher
  • Read our guide on proper Maintenance of Kitchen Knives.

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