3 piece locknut wrench kit, includes the following sizes: 1/2″, 3/4″ & 1″ locknut, specifically developed for tightening & loosening locknuts, thin profile for tight spaces, can be used to loosen or tighten a locknut by rotating the wrench in the direction of the arrows clearly etched into both ends, sturdy steel construction, specialty hooked tip latches onto the locknut & maximizes turning leverage.