The blade is convex on both sides in the tradition of the highly praised Japanese sword. This shape is both sharp and strong, and can still slice paper even after the punishment of beating and cutting through dried bamboo. Using this blade form is one superb method of making an edge thick without losing its sharpness. This is a knife of preeminent sharpness. You can enjoy its strong cutting capabilities for a long time. Even if used for rigorous cutting, the blade will not bite thanks to its convex shape. Other knives often will bite, and may nick if it is pulled out suddenly.