Japanese Sakai Takayuki Ajikiri Inox knife with 12cm blade. Ajikiri or Ko-Deba commonly used in coastal areas of Japan to fillet and butterfly small saltwater fish, particularly Aji (Japanese horse mackerel) - hence the alternative name of Aji-deba, or Aji-kiri. However, it is just as adept at dealing with small freshwater fish, such as trout. The Ko-deba is useful knife for home cooks that prefer to clean and fillet the smaller sizes of fish themselves, rather than buy fish which have already been filleted. Blade is made chrome and molybdenum 8A stainless steel. Sakai Takayuki Inox knives are sharp and do not rust easily due to their special material. The U shaped magnolia handles and water buffalo bolsters are easy to grip and are comfortable in the hand, even through long hours of use. This Sakai Takayuki Ajikiri knife is easy to sharpen and recommended for business and home use.