A utility knife is a practical tool for many kinds of work. It has a handle and a sharp blade which might be able to retract. The blade is often made of stainless steel or high-carbon steel and is designed to cut through cardboard, plastic, rope, and even fabric. Utility knives come in all shapes and sizes, some with safety locks, belt clips, or a replaceable blade system. Their wide adoption ranges from construction and plumbing professionals needing a reliable cutting tool to homeowners.