Hatsukokoro Ryusui Blue #2 Nashiji Damascus Kiritsuke Gyuto

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The Hatsukokoro Ryusui is a striking blend of performance and artistry, hand forged by Nigara Hamono in Aomori, Japan. Ryusui is the Japanese word for “flowing water” - this knife captures motion and texture in steel, while delivering the cutting precision expected from a top tier Japanese blade.

At its core is Aogami #2 (Blue #2) carbon steel, heat treated to around 62 - 63 HRC, offering excellent sharpness, edge retention, and a lively cutting feel. The blade starts thick and confident at the heel, then tapers smoothly toward a fine, precise tip. This strong distal taper, combined with a thin grind behind the edge, gives the knife both power and finesse; stable on the board yet highly accurate through detailed cuts.

Visually, the Ryusui is unmistakable. A mixed Damascus and nashiji finish creates a mineral like surface with dark and light speckles that resemble flowing streams across stone. This layered cladding not only adds depth and beauty, but also helps reduce food sticking during use. Each blade has its own character, making every knife feel unique.

An octagonal ebony handle completes the package, providing a secure, balanced grip and a refined contrast to the expressive blade. The result is a knife that feels purposeful in hand, performs at a high level, and stands out visually without being overdone.

For chefs and enthusiasts who appreciate exceptional craftsmanship, expressive finishes, and the cutting performance of Blue #2 steel, the Hatsukokoro Ryusui is both a tool and a statement piece - built to be used, admired, and enjoyed for years to come.

Blade Type: Kiritsuke Gyuto
Core: Aogami 2 (Blue 2) Carbon Steel
Cladding: Iron Cladding
Handle: Mono Ebony Octagonal Handle
Spine Thickness at Heel: 3.4 | 3.1mm
Blade Height at Heel: 50 | 52mm
HRC: 62-63
Weight: 209 | 224g
Blade Length: 197 | 227mm
Overall Length: 340 | 358mm