US Patent 8459151 Ratcheting socket wrench and sockets

A wrench for action on a work piece is provided. The wrench is a box end socket wrench. The socket wrench has an elongated handle with a box head. The box head has a top and a bottom surface and an inner wall defining an inner aperture. The inner wall is shaped to receive the work piece and has a receiving groove spaced apart from the top surface of the box head to receive a biased member. The biased member extends into the inner aperture of the box head to releasably secure the work piece. When the work piece is inserted in the inner aperture of the box head, the work piece sits flush with the corresponding top and bottom surface of the box head of the wrench.