| 主权项 |
1. A socket, adapted for being received in a sleeve hole of a go-through wrench wherein an inner wall of the sleeve hole is formed with a receiving portion and a positioning element disposed in the receiving portion, including:
a main body, having a driving portion and a connecting portion which are located at two ends thereof along an axial direction, the driving portion being adapted for connecting with a tool, the connecting portion having an external surface which is polygonal, the external surface including a plurality of driven faces arranged around the axial direction, a shared edge being formed between every two adjacent driven faces, at least one shared edge being formed with a notch, the positioning element of the go-through wrench being received in the notch for positioning when the connecting portion is received in the sleeve hole; wherein a cross-section, which is parallel to a radial direction of the main body, of the notch is substantially triangle, an inner wall of the notch includes a first bottom face and a second bottom face which are connected together, the first bottom face is closer to the driving portion than the second bottom face, an angle between the first bottom face and the adjacent shared edge is defined as a first angle, an angle between the second bottom face and the adjacent shared edge is defined as a second angle, the first angle is not smaller than 90 degrees, the first angle is smaller than the second angle, each of the first angle and the second angle is smaller than 180 degrees. |
