Collection: Tomihisa Koyori ZA18 Series

The Tomihisa Koyori ZA-18 Series features a fairly new and amazing stainless steel called "ZA-18" which is specially developed by Osaka Clad Co., Ltd with Aichi Steel Corp to compete or even outperform VG10. It has a similar chemical composition to the VG10 but contains higher Carbon (1.20 vs. 1.05), Chromium (18.0 vs. 15.5), Molybdenum (1.5- vs. 1.20), and Cobalt (1.80 vs. 1.50) for added hardness, durability, and corrosion resistance. It is a San Mai-clad construction with outer steel of AUS-2, which makes it extra strong to prevent bend and breaking.