Patent ID: 7278338

Claim:
A ratchet wrench comprising: a head having an engaging portion which includes a first through hole with a polygonal inner periphery which is adapted to be engaged with an object and a second through hole which includes an engaging inner periphery and a smooth inner periphery, a bottom plate with a central hole engaged with the smooth inner periphery; a movable member movably received in the second through hole, a top protrusion and a bottom protrusion extending from two opposite ends of the movable member, a driving section and a connection section extending radially from the movable member and located between the top and bottom protrusions, and an operation portion including a handle and a mounting portion, a connection recess defined in an underside of the mounting portion and a top hole which communicates with the connection recess, the top protrusion movably extending through the top hole and the bottom protrusion extending through the central hole of the bottom plate, wherein a spring is mounted to the bottom protrusion and biased between an underside of the driving section and the bottom plate, the connection section of the movable member removably engaged with the connection recess and the driving section of the movable member removably engaged with the engaging inner periphery, a height of the connection section is longer than that of the connection recess of the mounting portion so that when the movable member is moved away from the bottom plate, the driving section is completely disengaged from the engaging inner periphery of the head and a part of the connection section is engaged with the connection recess such that the movable member is co-rotated with the handle.