What Makes This Knife Truly Special
An Ultra-Thin Super Steel Honyaki Kiritsuke Yanagiba
This 270mm Super Steel Honyaki Yanagiba (Kiritsuke) features an exceptionally thin 1.9mm blade, designed for smooth, low-resistance slicing and precise control.
The blade undergoes vacuum heat treatment and sub-zero processing by Hatta Kogyo, achieving a hardness of approximately HRC62±1. Its Kiritsuke-style profile and one-side mirror polish combine refined cutting performance with an elegant appearance.
Final sharpening is performed by Kohei Yamatsuka, son of renowned traditional craftsman Tadayoshi Yamatsuka, creating a clean and precise edge.
Completed with a distinctive light blue gun-shaped resin handle, this knife brings together advanced heat treatment, ultra-thin geometry, and refined Sakai craftsmanship.
The KIREAJI Difference
KIREAJI Complimentary Services
Every knife includes a magnolia wood saya, carefully selected and fitted to provide safe storage and protection. Upon request, we also provide complimentary Honbazuke, a practical initial hand-sharpening intended to prepare the knife for first use while allowing the owner to further refine the edge over time according to their own preferences.
Why Many Product Photos Show Only the Blade
At KIREAJI, every knife is made to order in Sakai, Japan. Photos show the blade before the handle is attached, allowing artisans to perfect the balance and edge for your specific order. Your knife arrives fully finished — tailored just for you.
Global Delivery from Sakai
Across the world, discerning cooks seek authentic Japanese knives from Sakai — Japan’s legendary knife-making city with over 600 years of tradition.
At KIREAJI, we work alongside master artisans in Sakai to fulfill that desire, shipping genuine handcrafted knives directly from the workshop to kitchens worldwide.
Precautions
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3. Handcrafted Nature
Each knife is handcrafted by skilled artisans and is therefore unique.
Minor scratches or marks may be visible as a result of the handmade production process. These do not affect performance or functionality. We kindly ask for your understanding in advance.
If you have any questions, please feel free to contact us. (Estimated reply time: within 10 hours)
Recommended Users for Super Steel (Honyaki)
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1. Professionals Who Demand Uncompromising Performance
Engineered through vacuum hardening and sub-zero treatment, Super Steel achieves an exceptional hardness of HRC62±1 with edge retention to match. It is built for chefs operating in high-pressure environments — sushi bars, fine dining kitchens, and any setting where precision and consistency are non-negotiable.
Before Using a Japanese Knife
A knife is more than a tool—it’s the heart of cooking. Learning how to use it properly helps protect its quality, durability, and safety, so you can enjoy it for years while elevating every meal.
Japanese Knife Care
With the right daily care, your knife will stay sharp and reliable for a long time. Here, we share the key points to keep it in peak condition and extend its lifespan.