Petty knives are small utility or paring knives that are ideal for small, delicate work that a chef’s knife can’t handle such as delicate produce and herbs, small fruits and vegetables. Usually between 4 and 7 inches in length, the utility knife is most of the time treated as a mini chef’s knife. It can come straight or serrated, and is good for cutting vegetables and meat that are too small for a chef’s knife. Utility cooking knives often come with a scalloped edge for flexibility in cutting. It works perfectly for cutting soft as well as hard veggies, from tomatoes to squash. It is also very useful when you want to prepare lettuces, cabbage, and sandwich meat.