The core of the blade is forged from Japanese Aogami #2 (Blue Steel No. 2) carbon steel, laminated between layers of stainless steel. Aogami #2 contains tungsten and chromium, which enhance wear resistance and help the blade retain its sharpness for longer. This steel is easy to sharpen on water stones, allowing for the creation of a fine, aggressive cutting edge. While the stainless steel cladding protects the sides of the blade from corrosion and simplifies maintenance, the Aogami #2 cutting edge remains susceptible to rust; therefore, the knife must be washed and wiped completely dry after every use.
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