The Park Tool SWB-15 is a 15" forged-steel breaker bar designed to extra leverage when removing stubborn crank bolts, bottom brackets, freehubs, pedals, or any other seized or difficult fastener on a bike. The 3/8" square drive head pivots 180 and is compatible with many Park Tool products, including the SBS-1. 2 and SBS-3 socket and bit sets, TWB-15 crow foot pedal wrench, and many of our BBT bottom bracket tools.