Abstract: A hand tool includes a first part and a second part which is pivotably connected to the first part. The first part has a first jaw. An assistance member is connected to the first part and has a second jaw connected there. The assistance member has an adjustment screw, the second jaw is movable by rotating the adjustment screw. The user uses the first and second parts as the conventional pliers. A locking member is located in the positioning hole of the first part and can lock the relative position of the first and second parts. The second jaw is then adjusted relative to the first jaw by rotating the adjustment screw to be functioned as an adjustment wrench.

Abstract: A hammer structure includes a hammer head and a handle is connected to the head. The handle has multiple parallel resilient sticks received therein. Each of the resilient sticks has a first threaded section and a second threaded sections formed on two ends thereof. A first locking member and a second locking member are respectively connected to the first and second threaded sections. The first threaded sections of the resilient sticks extend through multiple through holes in the hammer head and are connected with multiple third locking members. The second threaded sections of the resilient sticks are fixed to the handle. The handle includes multiple coats. The resilient sticks absorb vibrations when using the hammer.

Abstract: A C-clip tool includes a first part and a second part. A first arm and a second arm are connected between the first and second parts. The second part has a reception hole and a rod is located at the mediate portion of the reception hole. Two enlarged holes are located on two ends of the reception hole and communicate with the reception hole. A resilient plate is located in the reception hole and two pillars are connected to the resilient plate. A push member has a block which optionally contacts one of the two pillars. Two operation members are respectively connected to the first and second arms. The operation members are replaceable to operate on different sizes of C-clips.

Abstract: An adjustable wrench includes a handle and a head is connected to handle. The head has a space defined therethrough and a path is defined in one end of the head. A fixed jaw extends from the head and located at one end of the path. A worm rod is rotatably located in the space. A threaded rod is movably inserted into the path and engaged with the worm rod. A movable jaw is movably connected to a protrusion extending from the threaded rod. The movable jaw has an elongate hole and a resilient member is located in the elongate hole. A pivotal member extends through the protrusion and the elongate hole. The resilient member is biased between the inner end of the elongate hole and the pivotal member. The movable jaw is loosened from the object by reversely rotating the handle of the wrench.

Abstract: A holding unit includes at least one recess defined in a first side thereof and extension extends from the first side of the holding unit. A curved finger recess is defined in a face of the extension and communicates with the lower inner end of the recess. A protrusion extends from the top inner end of the recess. Two notches are defined between two sides of the protrusion and two lateral insides of the recess. The protrusion has an inclined face defined between the two sides and the distal end thereof. A socket is positioned in the recess and the protrusion is engaged with the mounting hole of the socket, and the wall of the socket is received in the two notches. The socket is well positioned in the recess. The inclined face guides the socket to be removed from the recess.

Abstract: An adjustable ratchet wrench includes a head with a handle. The head has a space defined therein. A first pawl is located in the head and has a first engaging portion which protrudes through a recess in the inside of the space. A hollow slide is movably located in the space and has a passage defined axially therethrough. An index member extends from the top side of the slide. A second pawl is located in the first end of the slide and has a second engaging portion facing the space. A threaded rod extends through the passage of the slide and outer threads. The slide has an insertion member inserted therein and the insertion member has an engaging part which is engaged with the outer threads. By rotating the threaded rod, the slide with the second pawl move into the space to clamp objects of different sizes.

Abstract: A hand tool includes a first part and a second part which is pivotably connected to the first part. The first part has a first jaw. An assistance member is connected to the first part and has a second jaw connected there. The assistance member has an adjustment screw, the second jaw is movable by rotating the adjustment screw. The user uses the first and second parts as the conventional pliers. A locking member is located in the positioning hole of the first part and can lock the relative position of the first and second parts. The second jaw is then adjusted relative to the first jaw by rotating the adjustment screw to be functioned as an adjustment wrench.

Abstract: A tool box includes two parts which are connected to each other. Each part has a cross-shaped first recessed area on the outer surface thereof. Three second recessed areas are respectively defined in the two sides and the underside of each of the two parts. Each of the two parts has four corner portions formed on four corners thereof A first protection plate is connected to the first recessed area of one of the two parts. Each of the second recessed areas of each of the two parts has a second protection plate connected thereto. The first and second protection plates are made by metal so as to protect the tool box.

Abstract: A universal connector unit includes a resilient member, a positioning member, a connector and a socket. The connector has a substantially hexagonal head and a substantially rectangular connection portion, and the positioning member is connected to one side of the connector. The socket has a first recess and a second recess, and a shoulder is located between the first and second recesses. The head of the connector is located in the first recess, and the resilient member is biased between the head and the shoulder in the first recess. The positioning member is located in the socket and restricts the head of the connector from dropping out from the socket.

Abstract: An adjustable ratchet wrench includes a head with a handle. The head has a space defined therein and a first toothed portion is defined in an inside of the space. A first pawl is located in the head and has a first engaging portion which protrudes through a recess in the inside of the space. A hollow slide is movably located in the space and has a second toothed portion facing the first toothed portion. An index member extends from the top side of the slide. A second pawl is located in the first end of the slide and has a second engaging portion facing the space. A threaded rod extends through the slide which has pins engaged with outer threads of the threaded rod. By rotating the threaded rod, the slide with the second pawl move into the space to clamp objects of different sizes.

Abstract: A hammer structure includes a hammer head and a handle is connected to the head. The handle has multiple parallel resilient sticks received therein. Each of the resilient sticks has a first threaded section and a second threaded sections formed on two ends thereof. A first locking member and a second locking member are respectively connected to the first and second threaded sections. The first threaded sections of the resilient sticks extend through multiple through holes in the hammer head and are connected with multiple third locking members. The second threaded sections of the resilient sticks are fixed to the handle. The handle includes multiple coats. The resilient sticks absorb vibrations when using the hammer.

Abstract: An adjustable wrench includes a handle and a head is pivotably connected to the handle. The head has a guide hole through which a pin extends and the pin has a side hole defined radially so as to receive a positioning unit therein. A clamping device has a fixed jaw and a movable jaw, the fixed jaw has a travel path and the movable jaw has a toothed rod. A slide slot is defined in one side of the fixed jaw which has a board inserted into the slot of the head. The fixed jaw has an opening in which a push spring, a stop plate and a worm rod are received. The movable jaw is slidably connected to the slide slot. The toothed rod is located in the travel path and engaged with the worm rod.

Abstract: A ratchet wrench includes a handle and a pawl is pivotably connected to the handle. The pawl is selectively engaged with a positioning unit in the handle. A ratchet wheel has a through hole defined through the center portion thereof and the ratchet teeth of the ratchet wheel are engaged with the engaging teeth of the pawl. Two clamp members are inserted in the through hole of the ratchet wheel and each have an extension. Each extension has a slot defined in top and bottom thereof. The two extensions extend toward opposite directions. Two ring-shaped covers are respectively connected to the top and the bottom of the ratchet wheel and each cover has two openings defined in the underside thereof. The extensions extend through the openings. Pins extend through the covers and are engaged with the slots. The clamp members are movable to clamp objects of different sizes.

Abstract: A ratchet tool includes a head and a handle extends from a first end of the head and an extension rod is removably connected to a second end of the head. A connection member is connected to the head and includes a slot in which two blocks are movably received therein. Each block includes a clamping face so as to clamp a thread forming tap therebetween. A cover has a hole defined centrally therethrough and two guide ways are defined through the cover. Two pins are connected to the two blocks and slidably extend through the two guide ways. When rotating the head, the two blocks are moved toward to clamp the thread forming tap which is rotated with the rotation of the head. An adapter is connected the head and located opposite to the connection member. The adapter is connected with socket or bit.

Abstract: A tool box includes a base having a plurality of first recesses and two connection portions are connected on two sides of the base. Each connection portion has an elongate recess defined therein. Two pivotable side portions are pivotably connected to the two connection portions of the base and each side portion has a plurality of second recesses defined therein. The two side portions are sized to cover a top of the base. A space is defined in the base and opens to an end of the base, a slidable portion is slidably received in the space.

Abstract: An extension rod includes a polygonal recess in a first end thereof and a polygonal connection end on a second end of the rod. An axial recess is defined in the second end of the rod and communicates with an inclined passage and a receiving hole in the connection end, a bead is partially received in the receiving hole. A spring is received in the axial recess and biases an end of a pull pin which is received in the axial recess. A collar is movably mounted to the rod and has a connection pin connected thereto which is inserted in the inclined passage and engaged with an engaging notch defined in the pull pin. The pull pin is pulled toward the second end of the rod to receive the bead in a receiving recess in the pull pin to quickly release the socket.