Code: 4901601399608

Brand: KAI Corporation

Model: AK-5209

Product color: Beige

Size information: 200 mm

Product size: Height 2, Width 3.4, Depth 37

Product weight: 150

About this product
Made of steel that combines sharpness and ease of sharpening
Steel composite material: A tough blade made by hammering soft iron together with steel. Achieves the characteristics of steel's sharpness and ease of sharpening.
Wet-type flat front edge sharpening: Capable of delicate edge finishing with very fine whetstones. Water is applied to the whetstone during sharpening to prevent hardness drop due to friction heat.
Handle made of natural wood that fits comfortably in the hand
Material: Blade: Steel composite material (Blade: Carbon steel, Fitting: Soft iron), Ferrule: Nylon, Handle: Natural wood
Size: approximately 34.375 x 20 mm, Blade length: approximately 240 mm, Weight: approximately 157 g
Country of origin: Japan
Made of steel that is prone to rust. After use, remove dirt and thoroughly wipe off moisture. Leaving dirt or water can cause rust. Blade material: Carbon steel, Iron, Alloy steel
Brand: KAI Corporation
Color: Beige
Handle material: Wood
Blade edge: Plain, About this product
Made of steel that combines sharpness and ease of sharpening
Steel composite material: A tough blade made by hammering soft iron together with steel. Achieves the characteristics of steel's sharpness and ease of sharpening.
Wet-type flat front edge sharpening: Capable of delicate edge finishing with very fine whetstones. Water is applied to the whetstone during sharpening to prevent hardness drop due to friction heat.
Handle made of natural wood that fits comfortably in the hand
Material: Blade: Steel composite material (Blade: Carbon steel, Fitting: Soft iron), Ferrule: Nylon, Handle: Natural wood
Size: approximately 34.375 x 20 mm, Blade length: approximately 240 mm, Weight: approximately 157 g
Country of origin: Japan
Made of steel that is prone to rust. After use, remove dirt and thoroughly wipe off moisture. Leaving dirt or water can cause rust.

Shipping size: Height 2.5, Width 7.2, Depth 45

Shipping weight: 234

Made of steel that combines sharpness and ease of sharpening
Steel composite material: A tough blade made by hammering soft iron together with steel. Achieves the characteristics of steel's sharpness and ease of sharpening.
Wet-type flat front edge sharpening: Capable of delicate edge finishing with very fine whetstones. Water is applied to the whetstone during sharpening to prevent hardness drop due to friction heat.
Handle made of natural wood that fits comfortably in the hand
Material: Blade: Steel composite material (Blade: Carbon steel, Fitting: Soft iron), Ferrule: Nylon, Handle: Natural wood
Size: approximately 34.375 x 20 mm, Blade length: approximately 240 mm, Weight: approximately 157 g
Country of origin: Japan
Made of steel that is prone to rust. After use, remove dirt and thoroughly wipe off moisture. Leaving dirt or water can cause rust. Brand introduction


Sekki's Magoroku is a renowned swordsmith active from the Kamakura period to the Muromachi period.

He devised a unique sword-making technique, producing highly artistic and beautiful blades with outstanding sharpness.

The Sekki Magoroku series inherits the beliefs of swordsmiths and is a brand of kitchen knives characterized by high functionality, boasting sharpness and durability.


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A precisely calculated blade body with a sense of purpose, offering smooth, sharp cutting and durability, with a handle shape that becomes more comfortable the more you use it, blending functional beauty.

The master line, born from traditional craftsmanship and innovative technology cultivated in Sakai, Japan, the birthplace of cutlery, is the highest series of Sekki Magoroku, a product that can be loved for a long time.


Sekki Magoroku's top-tier series

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With the traditional craftsmanship of Japanese cutlery, for the world and future living.

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The KAI Group was born in Seki City, Gifu Prefecture, a city with over 800 years of history as the capital of cutlery. While inheriting the craftsmanship and spirit of manufacturing that flows through this land, it expands its product range around cutlery, driven by the corporate message 'A refreshing taste together with our customers, KAI's wish.'

About KAI

A manufacturer mainly selling cutlery such as razors and kitchen knives, as well as cooking utensils and cosmetic tools. The number of high-quality knives is not only popular in Japan but has become a globally renowned brand.

The inherited craft and spirit of famous swords

Born from unique sword-making techniques. As beautiful as art. The breathtaking sharpness.

The craftsmanship and spirit of Sekki Magoroku are inherited in modern cutlery-making, fused with KAI's cutting-edge technology to deliver a vivid sharpness.

Edge finishing

Sharpness or dullness is a human sensation. During manufacturing, checks of the blade tip and sharpness are performed manually at various stages.

Sekki Magoroku Ginju Hon Steel series

Steel composite material

A strong blade made by hammering soft iron into steel. Achieves the characteristics of steel's sharpness and ease of sharpening.

Buffalo horn ferrule

Using high-hardness steel with excellent wear resistance allows for a long-lasting exceptional sharpness.

Wooden handle

Handle made of natural wood that fits comfortably in the hand

Backside of the steel

Backside: The recessed part on the back of the blade is called 'Urasuki' (or 'Hiji').

Effect of Urasuki

By making the blade tip thinner, good sharpness can be maintained.

When sharpening the surface with Urasuki, only the back pressing part can be applied to the whetstone, avoiding unnecessary grinding and enabling efficient sharpening.

Wet-type flat front edge sharpening

Finished by skilled craftsmen through manual work

Capable of delicate edge finishing with very fine whetstones.

To prevent the blade from softening due to friction heat, water is applied during sharpening. Since the blade tip angle varies by product, adjustments are required in units.


Kinju Hon Steel

Ginju Hon Steel

Takumi Sou

Kinju ST

Ginju ST

Aojyu ST


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Customer reviews
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301 reviews

Rating: 4.0 out of 5 stars
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Rating: 4.3 out of 5 stars
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Rating: 4.1 out of 5 stars
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Rating: 4.1 out of 5 stars
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Price
8,600 yen
8,600 yen
4,525 yen
4,525 yen
4,673 yen
4,673 yen
4,009 yen
4,009 yen
2,900 yen
2,900 yen—
Features: Traditional forging method for authentic Japanese-style steel kitchen knives, combining sharpness and ease of sharpening. Easy to handle, with a refreshing cutting feel. An exceptional product with outstanding sharpness and durability. Maintains a sharp edge, resistant to rust, made of stainless steel, lightweight and easy to handle.
Ease of sharpening
Blade structure: Steel composite, Steel composite, Stainless steel single layer, Stainless steel single layer, Stainless steel single layer, Stainless steel single layer
Blade material: Carbon steel / Fitting: Soft iron, Blade material: Carbon steel / Fitting: Soft iron, Molybdenum vanadium stainless steel, Molybdenum vanadium stainless steel, Molybdenum vanadium stainless steel, Stainless steel cutlery steel, Molybdenum vanadium stainless steel, Molybdenum vanadium stainless steel, Molybdenum vanadium stainless steel, Stainless steel cutlery steel
Handle material: Natural wood, Natural wood, Stainless steel, Laminated reinforced wood, Natural wood, Polypropylene
Dishwasher compatible
Deba 150 weight approximately 248g, approximately 221g, approximately 230g, approximately 246g, approximately 255g, approximately 138g
Number of items: Types 714610117
Compared to our standards: Overall evaluation