SKU:KW004 ISBN:KW004

Deba Blue steel #1 Hon-Kasumi Buffalo Teak Handle 165mm

¥92,800

Deba is a sturdy fish knife with a solid and thick blade. The blade doesn't bend even if force is applied. It is often used to remove large fish scales, handle the bones, open the back of the fish, and cut the bones. The blade's thickness and weight can help to cut off fish heads without damaging the blade, as well as the small bones of chicken.

Blue Steel #1 is similar to Blue Steel No.2, but the additional Carbon and Tungsten / Wolfram result in even better edge retention and toughness. The steel is perhaps most commonly seen in high-grade Japanese traditional single-bevel edged knives.Traditional Kasumi polished finish. Kasumi roughly translated to “mist” or “cloud” and refers to the hazy appearance of the soft steel/iron cladding, in contrast to the fine polished cutting edge. This elegant finish is very common on traditional style Japanese blades.

Blade Material: Blue Steel #1/Aogami No.1
Blade HRC: 63~65
Blade Finish: Kasumi
Blade Type: Single-edged
Blade Length: 165mm
Blade Thickness:
Total Length:
Handle Length:
Weight:
Handle: Buffalo Teak Handle
Origin: Sakai City in Osaka Prefecture
Availability Sheath: Yes(Choosing the fit sheath)

Please do not use the knife in a twisting motion.

Please use the correct knife when cutting bone, frozen or hard items.

Please note that the images are of the sample products. Colour, weight, pattern and size can differ as each product is handmade.

Please use a soft plastic or wooden cutting board to protect the blades edge.

Please don't heat or cool rapidly as it may change the structure of the steel.

Please don't hesitate to contact us for further enquiries.

*The box shown in the pictures is for illustration purposes only. The actual packaging you receive may vary.

Exclusive perks, sharpening service, early access, and more. Join our Pro Membership to elevate your knife ownership experience.

First Blade Membership (for sharpening and essential care)
Master Blade Membership (for full maintenance and priority service)

Your kitchen knife isn’t just a tool, it’s a craft. Over time, even the best blades lose their edge without proper care. Our membership ensures your knives stay sharp, beautiful, and ready for a lifetime of service.

Learn more about our membership Here.

CRAFTSMANSHIP & LEGACY

We collaborate with traditional craftsmen across Japan, preserving and passing down centuries of artisanal expertise with every blade. Our mission is to keep these skills alive for future generations.

PRACTICAL BALANCE

Designed with usability in mind — from blade length to handle finish — our knives are tested and refined to suit global culinary styles.

SUSTAINABILITY & INNOVATION

We introduce sustainable designs like recycled marine plastic handles and lacquer finishes to bring tradition into the future.

MULTILINGUAL SUPPORT & GLOBAL REACH

Experience Japanese craftsmanship wherever you are. With multilingual support and global shipping, we bring the MUSASHI spirit to your doorstep.

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FAQ

Carbon steel offers exceptional sharpness and edge retention, but requires careful maintenance to avoid rust. Stainless steel is easier to care for and resists corrosion, making it ideal for everyday use.

Carbon steel offers exceptional sharpness and edge retention, but requires careful maintenance to avoid rust. Stainless steel is easier to care for and resists corrosion, making it ideal for everyday use.

Yes. Laser engraving is available as an optional service. You can add your name, message, or kanji to the blade handle or spine.

Yes, we ship worldwide. All orders are shipped from Japan. Shipping fees, delivery time, and customs may vary depending on your country.

Due to the nature of handcrafted items, we do not accept returns based on customer preference. Defective items may be exchanged within 7 days of delivery.

Wipe dry after use. Avoid acidic ingredients. Hand wash only with neutral detergent. Do not use dishwashers. For carbon steel, apply oil to prevent rust.

Yes. Repair and sharpening services are available for MUSASHI Pro Members. Handle replacement and blade restoration are also supported.

ベストプライス保証

私達は日本のローカル製造業者、消費者への直接販売です。最高の価格と高級包丁を保証します。

SAMURAI SPIRIT, GLOBAL REACH

日本製包丁の最高峰というだけでなく、消費者の声をもとに製品の品質向上に努めています。

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