BETOOLL 50mm Crankshaft Crank Pulley Wrench Holder Tool Removal Holding Spanner kit for Honda and Acura Engines Professional grade 50mm socket (with offset design) for removing/installing many Acura and Honda engine crank bolts This socket is used to maintain the harmonic damper pulley position while removing/installing the pulley bolt. Use with square socket driver.&gt; 1/2" square drive use with breaker bar Designed with hardened chrome molybdenum steel construction Backed by a lifetime replacement guarantee.