Patent ID: 7270034

Claim:
A tool kit comprising: a number of wrenches of various sizes, each said wrench comprising a handle with a box end, each said wrench further including a wheel that is rotatably mounted in the box end of the handle and that defines an inner periphery with a nominal size; and a corresponding number of go-through type sockets, each said socket comprising an engaging portion for engaging with the inner periphery of the wheel of a corresponding one of the wrenches, the engaging portion including a nominal size the same as that of the corresponding one of the wrenches, each said socket further comprising a driving portion including a driving hole with a nominal size the same as that of the corresponding one of the wrenches; the inner periphery of the wheel of each said wrench including an annular groove; the engaging portion of each said socket including a recessed portion having a plurality of annularly spaced grooves, each said groove having two inclined faces; each said wrench further including a retainer partially engaged in the annular groove and partially engaged in the grooves of the engaging portion of a corresponding one of the sockets, thereby retaining the engaging portion of the corresponding one of the sockets and allowing easy removal of the engaging portion of the corresponding one of the sockets from the corresponding one of the wrenches.