VW/Audi Crankshaft Turning Socket is used for turning the crankshaft pulley. Dual 1/2" Square drive & 22mm square drive with 12mm rotating pivot pin. Applications 2.4L, 3.2L & 4.2L FSI engines. Comparable to VW/Audi Factory Tool T40058. Whether tuning up your '68 Corvette or changing the oil on a John Deere tractor, CTA can supply you with the tools needed to do the job. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.