A fixed-blade utility knife is a type of cutting tool that features a non-retractable blade securely attached to the handle. These knives are designed for heavy-duty tasks, making them ideal for cutting through tough materials like cardboard, rope, and plastic. The sturdy construction ensures durability and reliability during use. Unlike retractable or folding knives, fixed-blade utility knives offer a consistent cutting edge without the risk of the blade accidentally retracting. They are often used in various industries, including construction and packaging, and can be easily sharpened or replaced when worn out.