Koyanagi Blue steel #1 Kurouchi Chokin Nami Buffalo Ebony Handle 150mm

SKU: H188-1 ISBN: H188-1

¥98,800

The Japanese word "Ko" means “small” or “short” in English, and the Ko-yanagi is a small Yanagiba¥ that is commonly used to fillet and slice small fish, particularly Aji (Japanese horse mackerel). The Ko-yanagi is useful knife for home cooks that prefer to clean and fillet the smaller sizes of fish themselves.

DESCRIPTION

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.Kurouchi Finish, the unprocessed (black) part on the top side of the blade has already developed a dark patina, which protects the blade and gives it a traditional Japanese look.The traditional style of Japanese carving has a long history of simplicity and inspiration. Although this technique (Chokin) is gradually disappearing into history, we hope to do our best to let more people feel its beauty.This is a limited edition of our kitchen knives in collaboration with the carver Asamura Takao, whose over 50 years of carving skills make each piece look so spiritual. Each design has been polished for months, even a year or more.

Kurouchi Finish, the unprocessed (black) part on the top side of the blade has already developed a dark patina, which protects the blade and gives it a traditional Japanese look.

INFORMATION

Blade Material: Blue Steel #1/Aogami No.1
Blade HRC: 63~65
Blade Finish: Chokin
Blade Type: Double-edged
Blade Length: 135mm
Blade Thickness: 2.2mm
Total Length:
Handle Length:
Weight:
Handle: Buffalo Ebony Handle
Origin: Sakai City in Osaka Prefecture
Availability Sheath: Yes(Choosing the fit sheath)

NOTICE

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.

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.

I can say, that was perfect. Good packaging, that sight beautiful, I love it 😍

Art

This is a wonderful little multifunctional kitchen knife. It's well balanced and, in use for the last 3 weeks, as sharp as the day it arrived. Many thanks

FAQ

What’s the difference between carbon steel and stainless steel?

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.

Is this knife ready to use out of the box?

Can I request custom engraving?

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

Do you ship internationally?

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

What is your return policy?

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.

How do I maintain my knife?

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.

Do you offer repair services?

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

MEMBER PRO BENEFITS

Our exclusive membership includes sharpening, engraving, repair, and VIP experiences — built for those who pursue mastery.

SAMURAI SPIRIT, GLOBAL REACH

Inspired by Bushido, we value dedication, respect, and mastery — sharing Japanese craftsmanship with the world.

ARTISAN-CENTERED PRODUCTION

While we currently collaborate with independent artisans across Japan, we are committed to preserving traditional craftsmanship — and shaping the future of Japanese blades together.