Abstract: A ratchet wrench includes a head having a first room for receiving a driving member, and a second room for receiving a pawl. Two recesses are defined in the inner periphery of the second room. A tip portion is located between the two recesses. The tip portion passes through the two respective centers of the first and second rooms. The pawl is controlled by a bolt and a lever. A spring and a contact member are received in a positioning hole in the rear side of the pawl. The contact member is biased by the spring and engaged with one of the two recesses to push the pawl to be engaged with the driving member. The contact member is restricted between one of the two recesses and the positioning hole so as to bear a large torque.

Abstract: A ratchet wrench includes a head having a first room for receiving a driving member, and a second room for receiving a pawl. Two recesses are defined in the inner periphery of the second room. A tip portion is located between the two recesses. The tip portion passes through the two respective centers of the first and second rooms. The pawl is controlled by a bolt and a lever. A spring and a contact member are received in a positioning hole in the rear side of the pawl. The contact member is biased by the spring and engaged with one of the two recesses to push the pawl to be engaged with the driving member. The contact member is restricted between one of the two recesses and the positioning hole so as to bear a large torque.

Abstract: The present invention provides an improved faucet which has two holes (115), (116) formed on the bottom of a hemispherical valve seat (113) on the same plane, two channels (117), (118) formed on another plane and these two planes cross each other; six holes on a ball valve (14) are separated by two groups, one group of holes (142), (143), (144) respectively match the channel (117) and holes (115), (116); when the ball valve (14) is turned, another group of holes (145), (146), (147) respectively match the channel (118) and holes (115), (116); a holding groove (148) for a holding protrusion (114) to pass through and hold the ball valve (14) in position; an H-shaped guide groove (152) formed on a valve stem guide (15) for a valve stem (141) to pass through and connect with a handle (24); a bi-directional feed pipe with one end connects with a valve outlet hole (124) which open or close is controlled by a solenoid valve (31), with the other end connects with the channel (118); a pipe juncture (134a) formed on the