Crankshaft Pulley Removal Tool,Automotive Tool,Car Accessories Weighted Sockets,19mm Harmonic Balancer Socket,50mm Crankshaft Pulley Holder, Use to Install or Remove Engine Crank Bolts. [50mm Removal Fixed Wrench] Crankshaft pulley holder the harmonic damper pulley from rotating when you remove and set the final torque specification on the pulley bolt.