Abstract: A wrench includes a handle and a driving head and a ratchet ring with a receiving hole is received in the driving head. An adapter is detachably inserted into the receiving hole and has a neck, an engaging portion and a reception hole. The neck on first end of the engaging portion has a first groove. A second groove is defined in the second end of the engaging portion. Multiple holes are defined through the bottom of the second groove and communicate with the reception hole. 33 A clip is engaged with the second groove and partially protrudes beyond the holes and exposed in the reception. A securing unit is connected to the driving head to secure or release the adapter. The receiving hole is connected with larger bits or sockets, and the adapter is connected with smaller bits or sockets.

Abstract: A ratchet wrench may comprise a main body, a circular ratchet gear, a locating unit, a spring and at least an accessory tool. The main body has an operating rod and a head portion, and an operating hole penetrates through a central portion of the head portion. Also, the ratchet gear is installed inside the operating hole. The locating unit is configured to extend toward an interior of the operating hole through an engaging portion thereof, and a peripheral groove is located at an end of the accessory tool along an outer periphery thereof. By engaging the engaging portion of the locating unit with the peripheral groove of the accessory tool, the accessory tool inserted into the connecting hole is configured to be secured on the main body for operation.

Abstract: A ratchet wrench may comprise a main body, a circular ratchet gear, a locating unit, a spring and at least an accessory tool. The main body has an operating rod and a head portion, and an operating hole penetrates through a central portion of the head portion. Also, the ratchet gear is installed inside the operating hole. The locating unit is configured to extend toward an interior of the operating hole through an engaging portion thereof, and a peripheral groove is located at an end of the accessory tool along an outer periphery thereof. By engaging the engaging portion of the locating unit with the peripheral groove of the accessory tool, the accessory tool inserted into the connecting hole is configured to be secured on the main body for operation.