Patent ID: 6981434

Claim:
A wrench ( 10 ) comprising: a head ( 11 ) having a through hole ( 12 ) defined therethrough and a recess ( 14 ) defined in an inner periphery of the through hole ( 12 ), a recessed area ( 13 ) defined in a surface of the head ( 11 ) and a bridge portion ( 16 ) located between the through hole ( 12 ) and the recessed area ( 13 ), a space ( 17 ) defined in an underside of the bridge portion ( 16 ) and in communication with the through hole ( 12 ); an engaging wheel ( 20 ) rotatably received in the through hole ( 12 ); two pawls ( 30 ) and a spring ( 31 ) connected between the two pawls ( 30 ), the two pawls ( 30 ) movably received in the recess ( 14 ), each pawl ( 30 ) having a protrusion ( 303 ) which extends into the recessed area ( 13 ), and a control member ( 40 ) rotatably received in the recessed area ( 13 ) and having a concavity ( 412 ) in which the two protrusions ( 303 ) are retained, the two pawls ( 30 ) being moved when the control member ( 40 ) is rotated.