D2 VS. AUS-8
Kizlyar Supreme's patented, nitrogen-hardened D2 steel, known for its long edge life, provides very long edge life without the need for frequent dressing. The very high hardness of 61-63 HRC is a dream for any user - the knife perfectly maintains its sharpness without the need for frequent dressing.
In addition, the Alpha is made of AUS -8 steel developed in Japan, which is known for its toughness, ease of machining and sharpening, and excellent corrosion resistance. It is perfect for universal use.