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Katana Koi Surge Black and Gold Lacquered Saya Genuine Rayskin 鲤波

Katana Koi Surge Black and Gold Lacquered Saya Genuine Rayskin 鲤波

Performance Katana Koi Surge with Maru Blade, Polished Edge with Decorative Hamon, Black and Gold Lacquered Saya and Genuine Rayskin

The Koi Surge is a performance-grade katana forged in Maru construction from modern steel, offering superb durability and responsive handling. Designed for tameshigiri (test cutting) and traditional martial arts practice, it embodies a seamless balance of refined elegance and practical strength.

The blade features a smooth, polished edge that accentuates its clean geometry and precise cutting performance. A single bo-hi lightens the blade and enhances balance, producing a crisp tachikaze (audible feedback) with every swing. The alloy tsuba is intricately carved with koi fish and flowing water, evoking vitality, perseverance, and the fluid grace of nature. A matching alloy kashira continues the aquatic motif, lending harmony and symbolic depth to the fittings.

The saya is adorned with a striking black-and-gold crackle lacquer finish, reminiscent of rippling water and shimmering koi scales. Paired with a brown sageo and ito wrapped tightly over genuine rayskin, it provides both aesthetic harmony and a secure, reliable grip. A brass kojiri completes the elegant koshirae, adding a warm metallic accent.

An ideal choice for practitioners and collectors alike, the Koi Surge blends modern craftsmanship with a poetic design inspired by Japanese tradition and the natural world.

Swords holder or stand sold separately.

Sword Information

Features Maru (mono-steel), Polished Edge, Genuine rayskin
Overall Length Approx. 100 cm
Blade Length (Nagasa) Approx. 72 cm
Handle Length (Tsuka) Approx. 26 cm
Blade Width at Habaki 3.2 cm
Blade Thickness 7 mm
Blade Material Spring Steel (Performance-grade)
Heat Treatment Through-hardened
Blade Shape Curved, single-edged
Sharpness Fully sharpened 
Tang Full Tang
Tsuka (Handle) Hardwood core wrapped in genuine rayskin
Saya (Scabbard) Hardwood
Fittings Alloy Fittings
Weight (without saya) Approx. 1000 g ± 50 g
Purpose Suitable for test cutting (Tameshigiri) and general martial arts training. We can provide an unsharpened blade upon request


$62.63

Original: $178.95

-65%
Katana Koi Surge Black and Gold Lacquered Saya Genuine Rayskin 鲤波

$178.95

$62.63
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Description

Performance Katana Koi Surge with Maru Blade, Polished Edge with Decorative Hamon, Black and Gold Lacquered Saya and Genuine Rayskin

The Koi Surge is a performance-grade katana forged in Maru construction from modern steel, offering superb durability and responsive handling. Designed for tameshigiri (test cutting) and traditional martial arts practice, it embodies a seamless balance of refined elegance and practical strength.

The blade features a smooth, polished edge that accentuates its clean geometry and precise cutting performance. A single bo-hi lightens the blade and enhances balance, producing a crisp tachikaze (audible feedback) with every swing. The alloy tsuba is intricately carved with koi fish and flowing water, evoking vitality, perseverance, and the fluid grace of nature. A matching alloy kashira continues the aquatic motif, lending harmony and symbolic depth to the fittings.

The saya is adorned with a striking black-and-gold crackle lacquer finish, reminiscent of rippling water and shimmering koi scales. Paired with a brown sageo and ito wrapped tightly over genuine rayskin, it provides both aesthetic harmony and a secure, reliable grip. A brass kojiri completes the elegant koshirae, adding a warm metallic accent.

An ideal choice for practitioners and collectors alike, the Koi Surge blends modern craftsmanship with a poetic design inspired by Japanese tradition and the natural world.

Swords holder or stand sold separately.

Sword Information

Features Maru (mono-steel), Polished Edge, Genuine rayskin
Overall Length Approx. 100 cm
Blade Length (Nagasa) Approx. 72 cm
Handle Length (Tsuka) Approx. 26 cm
Blade Width at Habaki 3.2 cm
Blade Thickness 7 mm
Blade Material Spring Steel (Performance-grade)
Heat Treatment Through-hardened
Blade Shape Curved, single-edged
Sharpness Fully sharpened 
Tang Full Tang
Tsuka (Handle) Hardwood core wrapped in genuine rayskin
Saya (Scabbard) Hardwood
Fittings Alloy Fittings
Weight (without saya) Approx. 1000 g ± 50 g
Purpose Suitable for test cutting (Tameshigiri) and general martial arts training. We can provide an unsharpened blade upon request