Wiki-Blade line

The name of the part of a knife that refers to the line traced by the tip of the blade. Depending on whether the line of the blade is straight or curved, it is suitable for different foods and tasks. Whatever the line, if the blade line is distorted, it will not make perfect contact with the cutting board, making it impossible to cut the way you want. Whether or not the blade line is not distorted is one of the factors that determine whether a knife is good or bad.

Related websites
Decoding Japanese Knives: Understanding Parts and Names | KIREAJI