A utility knife is a versatile cutting tool commonly used in various tasks, from crafting to construction. It typically features a retractable blade that can be extended or retracted for safety and convenience. The blades are often replaceable, allowing users to switch them out when they become dull. These knives are designed for precision and ease of use, making them ideal for cutting materials like cardboard, plastic, and rope. Many utility knives also have ergonomic handles for better grip and control. They are essential tools in many industries, including construction, art, and packaging.