Gardner Bender LNW-KIT Wrench Kit, 2-Piece, Steel, Black

The locknut wrench has been designed to end frustration. This ideal tool for locknut operation fits the majority of UL locknuts and features a thin profile that makes those normally tight spaces a thing of the past. It can be used to loosen or tighten a locknut by rotating the wrench in the direction of the arrows marked on both ends.