Klein Tools 66001 2-in-1 Impact Socket, Sizes 3/4-Inch and 9/16-Inch Hex, 12-Point Deep Socket Wrench with 1/2-Inch Drive

Single-ended impact socket with hands-free adjustment between socket sizes | Two coaxial spring-loaded 3/4-Inch and 9/16-Inch hex socket sizes in one tool | Deep socket with a 1/2-Inch drive works great for pole hardware installation and removal | High-torque, 12-point design is easier to position and works with square fasteners | Cross hole design to prevent unintentional separation of adapter and socket | Engineered for use with impact drivers including Klein's 1/2-Inch Compact Impact Wrench (Cat Nos. BAT20-CW, BAT20-CW1)