Klein Tools 3-1/2″ Quad-4 Heavy-Duty Impact Flip Socket, Metric (2-Piece) 651MQS

The Quad-4 impact flip socket increases socket efficiency by combining four metric hex sizes in one color-coded socket. Access 7mm and 10mm hex sizes, then flip to use 8mm and 12mm. Spring-loaded action enables hands-free size changes by applying pressure to compress the smaller socket, while its cold forged steel construction ensures durability for high torque impact applications.