bow drill

A bow drill is a tool used to bore holes or make fire. It consists of a small bow with a string that is wrapped around a drill. By moving the bow back and forth, the string causes the drill to spin rapidly, allowing it to bore into materials or generate friction for fire-starting. The bow used for this purpose is specifically called a drill bow. Fire itself is a rapid burning process that produces heat and flame, and its control was crucial for the development of civilization. Friction methods, including the use of fire drills, have been employed for thousands of years to manufacture fire.123