The Hatsukokuro Hayabusa series is made from HAP40 high carbon steel laminated in soft stainless steel for easy maintenance. HAP40 steel has a hardness of ~66 HRC and is known for its incredible edge retention and great toughness despite being very hard. HAP40 will form a patina over time but more slowly than some purer carbon steels.
This series is ground very thin and should be excellent for more precision-based tasks. This series comes fitted with octagonal wenge handles with buffalo horn ferrules.
Edge length: 213mm
Height at heel: 45.6mm
Spine thickness above heel: 2.1mm
Weight: 140g