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 |
Product Information
Product Information
Shipping & Returns
Shipping & Returns
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 |
