An effective control mechanism for a socket wrench that is capable of safe, high efficiency, high strength torque control while eliminating the problem of losing control due to improperly applied external force. The control mechanism includes a handle, a socket, an inner rotor, a C-washer, a ring spacer, a dialer, left and right auxiliary positioning levers, a control, a spring, a lid, a roller, and an elastic member; wherein an end of the handle includes a segment channel to accommodate the socket and the inner rotor, the socket includes one or multiple elastic member and one or multiple roller in relation to the segment channel, and multiple locking holes being provided on the recessed surface of the end of the handle for installation of both of the left and the right auxiliary positioning levers and the spring.