Abstract: A tubular tool includes a tubular first part and a tubular second part. The tubular first part including a first section having an engaging hole defined in the distal end thereof, and a second section having a connection hole defined in the distal end thereof so as to be respectively connected to a driving tool and an object. The tubular second part is rotatably mounted to the first outer periphery of the first section of the first part. At least one lip extending from the inner periphery of the tubular second part. At least one first circular rib extends outward from the first outer periphery of the first section. The at least one lip is engaged with the at least one first circular rib to restrict the second part from separating from the first prat.

Abstract: A tubular tool includes a tubular first part and a tubular second part. The tubular first part including a first section having an engaging hole defined in the distal end thereof, and a second section having a connection hole defined in the distal end thereof so as to be respectively connected to a driving tool and an object. The tubular second part is rotatably mounted to the first outer periphery of the first section of the first part. At least one lip extending from the inner periphery of the tubular second part. At least one first circular rib extends outward from the first outer periphery of the first section. The at least one lip is engaged with the at least one first circular rib to restrict the second part from separating from the first prat.

Abstract: A mounting structure of a hand tool includes a cylindrical body which has a mounting portion formed on one open end thereof. Multiple protrusions and recesses are formed in the inner periphery of the mounting portion. Each protrusion is connected to each of the adjacent recesses by a first conjunction line. A first face is defined annularly in the mounting portion. A second face is defined in one end of each protrusion. The first face intersects the second faces. The first face is located closer to the open end of the body than the second faces. The first and second face each are an inclined face relative to the open end of the body. The first angle is different from the second angle. A support portion extends from an edge of the first face so as to bear a larger torque.

Abstract: A mounting structure of a hand tool includes a cylindrical body which has a mounting portion formed on one open end thereof. Multiple protrusions and recesses are formed in the inner periphery of the mounting portion. Each protrusion is connected to each of the adjacent recesses by a first conjunction line. A first face is defined annularly in the mounting portion. A second face is defined in one end of each protrusion. The first face intersects the second faces. The first face is located closer to the open end of the body than the second faces. The first and second face each are an inclined face relative to the open end of the body. The first angle is different from the second angle. A support portion extends from an edge of the first face so as to bear a larger torque.

Abstract: A tool box includes a first box and second boxes are overlapped in pairs on the first box to form at least one layer. The second boxes located at the lowest layer are pivotably connected to two sides of the first box by first links and first plates. The second boxes of two adjacent layers are pivotably connected to each other by second links and second plates. The first link and the second link each have a first contact portion. The first links each have a protrusion link extending therefrom. The first and second plates each have a second contact portion. When the second boxes are expanded relative to the first box and the second boxes of the adjacent layer, the first contact portions contact the second contact portions. At least one handle is pivotably connected to the protrusion links of the first links on the two sides of the first box.

Abstract: A tool box includes at least one body which has a metal plate with multiple sides. Each side of the metal plate is bent to form a side wall so as to form a space between the metal plate and the side walls. Each corner of the metal plate has a notch and the side walls each have a distal section located corresponding to the notch. Each distal section has a first connection portion. Multiple connection members each have two wings extending from a bottom plate. Each wing has a slot and a second connection portion. The two distal sections of the two side walls are inserted into the two respective slots of the connection member, and the bottom plate closes the notch. The first connection portion is engaged with the second connection portion corresponding thereto.

Abstract: A tool box includes at least one body which has a metal plate with multiple sides. Each side of the metal plate is bent to form a side wall so as to form a space between the metal plate and the side walls. Each corner of the metal plate has a notch and the side walls each have a distal section located corresponding to the notch. Each distal section has a first connection portion. Multiple connection members each have two wings extending from a bottom pate. Each wing has a slot and a second connection portion. The two distal sections of the two side walls are inserted into the two respective slots of the connection member, and the bottom plate closes the notch. The first connection portion is engaged with the second connection portion corresponding thereto.

Abstract: A torque connector assembly includes an outer tube having a first threaded portion, a first hole and multiple windows. Each window has first and second scales formed on its two sides. An inner tube has a second threaded portion, a second hole and an index line. The first and second threaded portions are threadedly connected to each other. The index line is located corresponding to the windows. A first connector has a first engaging end and a second engaging end. A second connector has a first matching portion and a second mounting portion which is mounted to the second engaging end. A third connector has a second matching portion which is connected with the first matching portion. The third connector has a third mounting portion which extends from the second hole. The resilient member is biased between the second connector and the outer tube.

Abstract: A torque connector assembly includes an outer tube having a first threaded portion, a first hole and multiple windows. Each window has first and second scales formed on its two sides. An inner tube has a second threaded portion, a second hole and an index line. The first and second threaded portions are threadedly connected to each other. The index line is located corresponding to the windows. A first connector has a first engaging end and a second engaging end. A second connector has a first matching portion and a second mounting portion which is mounted to the second engaging end. A third connector has a second matching portion which is connected with the first matching portion. The third connector has a third mounting portion which extends from the second hole. The resilient member is biased between the second connector and the outer tube.

Abstract: A driving tool includes a driving shaft and a bar which movably extends through the driving shaft. At least one of two end sections of the bar has a hole and a recess, wherein an engaging member is engaged with the hole and protrudes out from outer surface of the bar. The recess is defined axially in the end of the at least one end section and a control rod and a resilient member are received in the recess. The control rod includes a first notch and a second notch of different depths. When the control rod is operated to overcome a force of the resilient, the engaging member is engaged with the second notch, the engaging member is retracted into the at least one end section. The bar can be separated from the driving shaft so as to change the driving shaft.

Abstract: A wrench includes a body and a driving head connected to the body. The body includes a push rod, two first push pieces, two second push pieces and a push unit so as to control the position and angle that the driving head rotates relative to the body. The driving head includes multiple positioning holes, an engaging protrusion, a through hole in the engaging protrusion, a bead and a control rod to control the engagement or disengagement between the engaging protrusion and the socket.

Abstract: An open wrench includes a recess defined by two clamp surfaces and two engaging surfaces to mount to a bolt head. One of the clamp surfaces has a passage and the movable member is located in the passage. The movable member has a spherical distal end and protrudes from the clamp surface. Each of the clamp surfaces has a tangential surface and a distance between the two tangential surfaces is longer than the maximum distance between two corners of the bolt head. An angle is defined between the axis of the passage and the tangential surface of the clamp surface. The clip is engaged within the passage and the outer periphery of the clip is engaged with the annular groove and the inner periphery of the clip protrudes from the extension so as to contact the second shoulder to prevent the movable member from dropping from the passage.

Abstract: A wrench includes a body and a driving head connected to the body. The body includes a push rod, two first push pieces, two second push pieces and a push unit so as to control the position and angle that the driving head rotates relative to the body. The driving head includes multiple positioning holes, an engaging protrusion, a through hole in the engaging protrusion, a bead and a control rod to control the engagement or disengagement between the engaging protrusion and the socket.

Abstract: A driving tool includes a driving shaft and a bar which movably extends through the driving shaft. At least one of two end sections of the bar has a hole and a recess, wherein an engaging member is engaged with the hole and protrudes out from outer surface of the bar. The recess is defined axially in the end of the at least one end section and a control rod and a resilient member are received in the recess. The control rod includes a first notch and a second notch of different depths. When the control rod is operated to overcome a force of the resilient, the engaging member is engaged with the second notch, the engaging member is retracted into the at least one end section. The bar can be separated from the driving shaft so as to change the driving shaft.

Abstract: A tool rack includes a frame having two sidewalls and two slots are defined through the two sidewalls. A plurality of recesses are defined in the frame and a rod having second recesses is connected between the two sidewalls. A restriction member is connected to the frame and two distal ends of the restriction member are movably engaged with the slots of the frame. The restriction member includes third recesses which are located in alignment with the recesses so that the tools are engaged with the first, second and third recesses. A stop plate extends from a distal end of an inside of each third recess so as to prevent the tools from disengaging from these recesses. When shifting the restriction member, the stop plates are moved away from the recesses so that the tools can be picked out from the tool rack.

Abstract: This invention discloses a set of tool rack which can particularly place multiple wrenches. It is mainly comprised of a main frame, a front cover panel and two locking members. The main frame includes an axial rod, a connecting plate and two side plates. The axial rod provides the openings of the wrenches to hold on. Each side plate includes a guiding slot and a locking hole. The guiding slot starts from the rear end of the side plate, extended around the axis of the axial rod, and then ends to the front end of the side plate. Between the two side plates are multiple receiving recesses for the shanks of the wrenches to be engaged. The front cover panel includes a cover plate and two curved side plates having protruding columns inserted over the guiding slot so that the cover plate is moveable along the guiding slots.

Abstract: A driving head of a wrench includes three engaging surfaces and three reception concavities alternatively defined in an inner periphery thereof. A recess is defined in a center of each of engaging surfaces and located between first and second engaging portions. The last reception concavity has one of two insides connected to the second engaging portions next to it, the other insides of the last reception concavity is connected with a third engaging portion. The recesses and the reception concavities are sized to accommodate protrusions of a star-shaped nut. The reception concavity is sized to accommodate one of protrusions of a star-shaped nut. The adjacent first and second engaging portions have a common tangent line and three respective common tangent lines are located on three sides of a hexagonal object. The wrench is able to drive the object in two opposite directions without removing the wrench from the object.

Abstract: An extension bar includes an elongate body, a conductive unit, a control unit and an illumination unit. The conductive unit includes a non-conductive first piece, a non-conductive second piece and a conductive third piece which is separated from the body. A conductive bead is engaged with one end of the third piece. The control unit includes a first control member and a second control member which has an opposite conductivity to the first control member. The first control member is mounted to the body and includes a first recess and a second recess. The second control member is securely engaged with the first recess and in contact with the exterior of the body. The illumination unit includes an illumination part and a power supply unit which contacts between the illumination part and the third piece.

Abstract: A tool rack includes a frame having two sidewalls and two slots are defined through the two sidewalls. A plurality of first recesses are defined in the frame and a rod having second recesses is connected between the two sidewalls. A restriction member is connected to the frame and two distal ends of the restriction member are movably engaged with the slots of the frame. The restriction member includes third recesses which are located in alignment with the first recesses so that the tools are engaged with the first, second and third recesses. A stop plate extends from a distal end of an inside of each third recess so as to prevent the tools from disengaging from these recesses. When shifting the restriction member, the stop plates are moved away from the first recesses so that the tools can be picked out from the tool rack.

Abstract: This invention discloses a set of tool rack which can particularly place multiple wrenches. It is mainly comprised of a main frame, a front cover panel and two locking members. The main frame includes an axial rod, a connecting plate and two side plates. The axial rod provides the openings of the wrenches to hold on. Each side plate includes a guiding slot and a locking hole. The guiding slot starts from the rear end of the side plate, extended around the axis of the axial rod, and then ends to the front end of the side plate. Between the two side plates are multiple receiving recesses for the shanks of the wrenches to be engaged. The front cover panel includes a cover plate and two curved side plates having protruding columns inserted over the guiding slot so that the cover plate is moveable along the guiding slots.