Penta Impact Socket from Rauckman Utility Products is a member of BugWrench™ family of lineworker tools that are designed for use on distribution poline hardware. These 5 point impact grade sockets are for 13/16″ penta nuts and bolts and come in 2 models. Model R-9067 is for 1/2″ drive and Model R-9074 is for 3/8″ drive.