Double open end wrench
The Capri Tools 0 Degree Offset Extra Long Box End Wrenches are designed to let you easily tackle recessed bolts and bolts in tight spots. The flat jaws of these wrenches are slid around nuts or bolt heads and levered for loosening or tightening. The open ends allow the tool to be slid over the nut in tight quarters where there would be insufficient space for a box wrench or a socket, or where the length of a shaft or pipe interferes.