A utility knife is a type of multipurpose knife that is designed for general purpose use. Utility knives typically feature a blade that is between two and six inches long, and a handle that is designed to provide a comfortable grip for both right- and left-handed users. Some utility knives also feature a serrated edge, which can be used for sawing through tougher materials. Utility knives are commonly used for tasks such as opening boxes, cutting rope, and trimming branches.. Looking for All-Purpose/Utility Knives? KnifeCritic is here to help you find the best All-Purpose/Utility Knives for your needs. We have gathered information about the top All-Purpose/Utility Knives on the market to help you choose the right one for you.