Chef Knives Here is our complete selection of Chef Knives. A Chef Knife, also called a Cook's Knife is used for a variety of cutting tasks in the kitchen. The blade is wide at the handle and tapers to a point. When properly used a chef knife is rocked on the cutting board, leaving the tip on the cutting board. This knife is used by professionals for roughly 75% of the time and works well for a variety of slicing, boning, chopping and cutting tasks.