Banshu Mitsuki Deba 180mm Shirogami Tsuchime

Product description

This filleting knife is a traditional slender deba, hand-forged in the Banshu region of Japan . It is a limited edition, produced in small quantities and only available in limited series. Each piece is an original, hand-finished by the blacksmith himself.

It is designed for filleting fish and preparing sashimi, and thanks to its shape, it is particularly suitable for blue fish (mackerel, sardine) or salmon.

The blade is hand-forged from rare White Steel (Shirogami) , known for its extreme sharpness and excellent edge retention. The core of this steel is clad in soft iron , providing a balanced combination of hardness, flexibility and ease of sharpening.

Each piece is original – hand-forged with a black hammered finish that highlights the traditional character of the knife and protects the surface from corrosion. The handle with a sakura motif and a delicate shinogi (raised ridge) offers a sure and stable grip even during precise work.

This knife is a top-notch tool for professionals and passionate chefs who will appreciate the quality of handcrafting, authentic aesthetics, and uniqueness of a limited edition.

Knife category

This knife belongs to a limited edition, which is produced in limited quantities and is not part of regular mass production. Individual pieces are created by hand and availability is limited in time and quantity.

Knife type: Slender Deba / Fillet Knife (ideal for filleting fish and sashimi)
Country of origin: Made in Japan
Manufacturer: Banshu Mitsuki
Place of production: Banshu

Knife specifications

Blade length: 180 mm
Blade height: 42 mm
Blade thickness: 5 mm
Weight: approx. 232 g
Focus: single-sided

Materials used

Blade core: White Steel (Shirogami)
Blade - sheath: forged soft iron
Handle: cherry wood with sakura motif and shinogi back
Blade surface: black hammered (Tsuchime black hammered finish)

Blade features

The hand-forged construction ensures excellent material density and long blade life.
The White Steel (Shirogami) core provides extreme sharpness and easy sharpening.
The black hammered surface (Tsuchime) emphasizes the traditional character and protects against corrosion.
Specialized Slender Deba profile ideal for filleting fish, salmon and preparing sashimi.
Elegant cherry wood handle with sakura motif and shinogi shape for a sure grip.

Recommendations for new knives

Even though new knives are sharp, you will only know their true sharpness after the first sharpening on a whetstone.
To achieve maximum performance, we recommend that you gently sharpen the knife on a water stone before using it for the first time.
We offer knife sharpening - we will be happy to recommend a suitable stone or service depending on your style of use.

Knife maintenance recommendations

After use, rinse the knife, dry it and store it in a dry place.
Regular fine grinding will extend the life of the blade and maintain optimal cutting ability.
Carbon steel can develop a patina over time, which is a natural and desirable phenomenon.
For carbon steel, we recommend occasional oiling of the blade with mineral oil.

Warning – carbon steel knives

Carbon steel knives are not stainless steel – they may rust, darken, or develop a patina over time.
These changes are natural and protect the blade.
Always rinse, dry and store dry after use.
Proper care will ensure a long life and consistent performance of the blade.

Notice

Not suitable for dishwashers or dishwasher dryers - high temperatures and chemicals can damage the blade and handle.
The knife is not intended for cutting bones, frozen foods or extremely hard ingredients.
Each piece is original - there may be slight variations in shape, hammering pattern or dimensions. Packaging and labels may vary depending on the production series. These differences are natural evidence of handcrafting and are not a defect.