Tsunehisa knives come from various blacksmiths and factories from around Japan. They make many different style blades made from a range of steels. Great performing and affordable knives.

The Gyuto is the Japanese version of french Chefs knife.

AUS10 is a stainless steel, made by Aichi Steel, with good hardness and toughness, it sharpens easily, keeps an edge for a good amount of time and is not too delicate. AUS8 has a lower carbon, nickel and Manganese contents but it is similar to AUS10 with its hardness, good edge retention and ease of sharpening.  

AUS8 (Carbon).70-0.75                                                 AUS10 (Carbon) 0.95–1.1