Klein Tools 66012 2-in-1 Impact Socket, 12-Point, 5/8 and 7/16-Inch

Single-ended impact socket with hands-free adjustment between 5/8-Inch and 7/16-Inch hex sizes. Deep socket with a 1/2-Inch drive is great for general electrical and construction work. The high-torque, 12-Point design is easier to position and works with square fasteners.