A utility knife is a versatile cutting tool commonly used in various tasks, such as packaging, crafting, and construction. It typically features a retractable blade that can be extended or retracted for safety and convenience. The blade is often made of high-carbon steel or stainless steel, allowing it to cut through materials like cardboard, plastic, and even thin wood. Utility knives come in different designs, including folding and fixed-blade models. Many have ergonomic handles for a comfortable grip, making them easy to use for extended periods. They are essential tools for professionals in fields like construction and art, as well as for everyday tasks at home.