@ooss7663: This type E extended socket wrench is specially designed for the adjustment of the belt pulley of the idler extender for the automobile engine and has several practical features. It is equipped with a long curved flat handle for easier operation in confined Spaces, as well as an adjustment tool #Highperformanceutility #autorepairtool #repair #idlerpulleyadjustmentwrenchwhenremovingandinstallingserpentinebeltswithspringlovewheels