The FKH line from Fujiwara Kanefuse is a High Carbon series. These knives are more reactive so they require extra care to keep from oxidizing, but will form a great patina. These knives also take a steep edge and will hold it for an extended period. This series is equipped with black Pakka wood handles and the steel has a HRC rating of 60. They are an extraordinary value at this price point. The 120mm Petty knife is the paring knife of the Japanese knife world. It is great at detail work or peeling and cutting vegetables.