"New, high strength alloy","New, high visibility laser marking helps technicians identify sockets quicker","Opti-Torque - applies torque to fastener sides not corners - allowing more torque to be applied to fastener","Counter-Torque - Distributes the torquing stress uniformly throughout the socket extending socket life","Socket Rail - Color coded, unique spring-loaded ball allows easy socket removal and replacement 1/2" DRIVE 9/16" SAE 6 POINT IMPACT SOCKET CP186A | Matco Tools