Patent attributes
A socket includes a hole having a hexagonal cross section and defining six abutting sides and an included angle between any of the two adjacent abutting sides. Any of the two opposite abutting sides spaced at a first distance. Any of the two opposite included angles spaced at a second distance. The socket has first, second, and third sections having first, second and third external diameters, respectively. The second external diameter is smaller than the first external diameter and the third external diameter is smaller than the second external diameter, respectively. A difference between the second and third external diameters is not less than a difference between the first and second distances. A drive bit is mounted to the second end of the socket.
