Grey Pneumatic 2146DT 1/2" Drive x 3/4" and 13/16" Extra-Thin Wall Flip Socket features unique hex opening on each end so that a single socket can accommodate two hex sizes. The extra thin wall design allows easy access to recessed wheel nuts where space is limited. Due to the extra-thin wall design; this socket should only be used on wheel nuts where limited torque is applied. Extra-Thin Wall impact sockets are not covered by the GP warranty.