Zwilling J.A. Henckels offers a variety of knife tip shapes for different purposes. Three shapes in particular can be distinguished.
The back of the blade is straight while the cutting edge is curved, e.g. on a boning knife. This shape permits the blade to be raised from the cutting board with a rolling action.
Both the back of the blade and the cutting edge are gently curved, terminating in a point. With a pronounced tip like this (e.g. on a chef?s paring knife) the blade can easily be used to clean vegetables, cut fine herbs, or lard a roast.
The back of the blade is curved while the cutting edge runs straight to the point. This shape permits a smooth, straight cutting action on a cutting board without any chopping action.