Klein 2-in-1 Socket Set- 5 Pieces #66040Eight sizes combined into four sockets including: 7 8 x 11 16 Inch, 3 4 x 9 16 Inch, 5 8 x 7 16 Inch and 1 2 x 3 8 Inch Single ended impact sockets with hands free adjustment between socket sizes 12 point design is easier to position and works with square fasteners Two coaxial, spring loaded socket sizes in each tool 1 4 Inch hex by 1 2 Inch square adapter