A breaker bar is a tool used primarily for loosening tight bolts, nuts, or fasteners. It consists of a long handle (typically around 18 to 24 inches long) and a socket attachment at one end. A breaker bar is a tool used primarily for loosening tight bolts, nuts, or fasteners. It consists of a long handle (typically around 18 to 24 inches long) and a socket attachment at one end. The handle of a breaker bar is significantly longer than that of a typical ratchet or wrench, providing increased leverage, which makes it easier to apply greater force to stubborn or seized fasteners. The longer handle allows users to generate more torque without as much effort compared to a traditional wrench, making it useful for tasks where significant force is required. Breaker bars are commonly found in automotive repair and maintenance, as well as in various other mechanical and industrial applications.