Tsumami Katana

Tsunami Katana

The Tsunami Katana by Kaizen Sword Art embodies one of the most respected forces in Japanese natural philosophy: water. A tsunami is not loud or chaotic, but inevitable and all-conquering.

This katana translates that principle into a handcrafted katana that moves fluidly without sacrificing effectiveness. This is not a decorative sword, but a sharp, functional Japanese sword for those who understand that true power comes from control.

The Tsunami Katana from the Ashigaru series is hand-forged from high-quality HCS 1095 carbon steel and traditionally clay tempered. This differential hardening creates a natural, visible hamon that marks the transition between hard and resilient steel — essential for both cutting performance and durability.

The result is a handcrafted katana with excellent balance, a reliable edge, and a lively character. The Tsunami feels fast, responsive, and controlled, exactly as a samurai needed to trust his sword in any situation.

The blade is executed in the classic shinogi-zukuri style, a proven geometry combining stability and cutting power. The subtle sori supports a smooth, natural cutting motion — as if the blade itself follows the path of least resistance.

The integrated bo-hi (blade groove) reduces weight without compromising structural strength. This results in faster handling and a clear tachikaze, providing valuable feedback during training and tameshigiri. Like a wave, each cut follows a flowing line — controlled and precise.

Tsuka and koshirae – control in every detail

The tsuka is traditionally constructed in Ryugo style and fitted with genuine white rayskin (same). The midnight black cotton ito is wrapped exceptionally tight, offering maximum grip and safety even during intensive use.

The mounting is functional and solid, featuring two mekugi for added security. The tsuba, fuchi-kashira, and menuki are carefully selected and form a harmonious whole that reinforces the restrained power of the Tsunami theme. No excess — only balance, functionality, and aesthetics.

Key features of the Tsunami Katana

Why this model stands out:

Handcrafted, hand-forged blade
HCS 1095 carbon steel
Clay tempered with visible hamon
Sharp, functional Japanese sword
Shinogi-zukuri blade geometry
Bo-hi for improved balance and handling
Full tang construction
Traditional tsuka with genuine same
Extremely tight cotton ito wrapping
Solid mounting with double mekugi

Specifications – Tsunami Katana

Steel: HCS 1095 carbon steel
Hamon: Naturally visible
Blade style: Shinogi-zukuri
Bo-hi: Yes (basic)
Nagasa: 2.47 shaku (approx. 74.8 cm, excluding habaki)
Tsuka length: approx. 27.5 cm
Weight: 945 gram 
Ito: Blue cotton, very tightly wrapped
Mekugi: 2
Sageo: Midnight Blue
Saya: Black matte lacquered
Condition: Fully sharp and functional

Who is the Tsunami Katana for?

The Tsunami Katana is a fluid yet powerful katana, for enthusiasts of handcrafted swords with natural symbolism, and for collectors looking for a sharp, functional Japanese sword with depth and character.

Buy your Tsunami Katana

Looking for a katana that unites natural force, tradition, and functionality? Then the Tsunami Katana by Kaizen Sword Art is an exceptional choice. Order today at Samurai-Katana-Shop.nl and experience a sword that moves like water and cuts with unstoppable precision.

This is a handmade katana. Minor variations in finish and dimensions are a natural characteristic of authentic craftsmanship.

* To keep a sword in good condition you need to maintain it and oil it.