Neiko 00211A 1/2" Drive Extension Breaker Bar, Chrome-Vanadium Steel | Rotating Head | 18" Length Half inch drive breaker bar with a long 18-inch handle provides ample leverage to amplify torque Made of extremely durable drop forged heat-treated chrome vanadium and corrosion-resistant mirror/chrome polish finish Spring-loaded ball detent locks in to prevent parts from slipping into engines or machinery Head rotates 180 degrees, allowing breaker bar to manipulate hard-to-reach fasteners at awkward angles Square drive radius corners reduce socket wear by locking on to the sides of the fastener rather than the edges