Breaker bar dual drive including 6″ flexible Head 1/4″ drive, 10″ flexible Head 3/8″ drive, 15″ flexible Head 1/2″ drive. (Torque range: 1/4″ 56.5nm, 3/8″ 203.4nm, 1/2″ 508.5nm). Driven breaker bar with 180° swivel head range is convenient for your multi-angle flexibility, it provides torque from multiple angles to maximize the leverage around narrow spaces and produce the best leverage.