Abstract: A ratchet wrench includes a drive member and a switch rotatably received in a body. A pawl is movably received in the body and has first and second sides. The second side of the pawl includes a pressing portion having upper and lower sections. The pressing portion further includes two pressing sections. Two positioning units are mounted between the switch and the second side of the pawl. The positioning units press against the upper and lower sections to bias the first side of the pawl to engage with the drive member. The positioning units press against one of the pressing sections corresponding to one of two positions of the switch.

Abstract: A driving assembly includes a body having first and second sides and an outer periphery extending between the first and second sides. A through-hole extends through the outer periphery of the body and receives a rod. A receiving groove is formed in the outer periphery and has an opening in the first side. A control groove is formed in a bottom face of the receiving groove. A driving portion extends from the first side of the body and includes a limiting groove receiving a limiting member and a positioning hole receiving a positioning member. A control member is received in the control groove and includes a control end received in the receiving groove. The control member is operable by a user to move the positioning member through transmission by the limiting member, allowing engagement with or disengaging from a workpiece.

Abstract: A tool box includes a body having a front end and a force-receiving portion spaced from the front end. The body further includes first and second sides and two lateral walls. The lateral walls, the front end, and the force-receiving portion are integrally formed as a single and inseparable component of the same material. The front end includes a compartment. A receiving space is defined between the lateral walls and has an opening in the second side or the force-receiving portion. A ratcheting mechanism includes a main body mounted in the body and a ratchet wheel rotatably received in the main body. The ratchet wheel is located in a quarter corner of the body adjacent to the front end and the first side. A driving groove is defined in the ratchet wheel for engaging and driving a shank to rotate. A bit-receiving rack is removably received in the receiving space.

Abstract: A screwdriver includes a first body having an end for coupling with a handle, a second body rotatably coupled to the other end of the first body, two pairs of engaging members, and a switch member pivotably mounted to the first body. Each pair of engaging members is slidably received in an associated transverse receiving section that includes two end openings in an outer circumference of the first body. Each engaging member includes a first end with an engaging portion. An elastic element is mounted between second ends of each pair of engaging members for biasing the pair of engaging members away from each other. The switch member is pivotable to selectively engage at least one of the engaging portions of each pair of engaging members with teeth of the second body, thereby controlling relative rotation between the first body and the second body.

Abstract: A ratchet wrench includes a body having a first compartment rotatably receiving a drive member and a second compartment slideably receiving two pawls. A positioning member extends into the second compartment. A switch is slideably mounted to the body and includes two legs extending into the second compartment for moving the pawls. A restraining member is slideably received in the compartment and coupled to the legs to move therewith. The restraining member includes at least two positioning sections selectively engaged with the positioning member corresponding to at least two positions of the switch.

Abstract: A wrench includes a handle having first and second ends spaced along a longitudinal axis. The second end of the handle includes a receptacle extending in a radial direction perpendicular to the longitudinal axis. The handle further includes an annular groove intermediate the first and second ends along the longitudinal axis. The second end of the handle is slideably received in an extension. A positioning hole extends from an inner periphery through an outer periphery of the extension. A positioning member is mounted in the receptacle and biased by a spring to extend through the positioning hole, with a portion of the positioning member pressing against the inner periphery of the extension. A resilient retaining member is mounted in the annular groove. An exposed portion of the retaining member outside of the annular groove presses against the inner periphery of the extension when the extension is engaged with the handle.

Abstract: A tool holding device is suitable to have an application with a power tool. The tool holding device includes a toolholder for receiving a bit. A sleeve is disposed outside the toolholder and is operable to move between a first position which allows for removal of the bit and a second position which allows the bit to be securely retained in the cavity of the toolholder. A returning member is disposed circumferentially between the toolholder and the second section of the sleeve for returning the sleeve to a neutral position between the first and second positions. Moreover, the portion of the sleeve which does not surround the returning member abuts the toolholder.

Abstract: A ratchet wrench includes a head having a compartment. The compartment includes a first compartment section rotatably receiving a drive member and a second compartment section slideably receiving two pawls releasably engaged with the drive member. A switch is rotatably received in a switch groove formed in a side of the head and in communication with the second compartment section. A reversing plate is rotatably mounted to an engaging portion of the drive member extending beyond the head. The reversing plate includes a control section having a guiding groove. The switch includes a pin slideably engaged in the guiding groove. The switch pivots in the switch groove with the pin sliding in the guiding groove when the reversing plates pivots to control engagement between the drive member and the first and second pawls for controlling a driving direction of the ratchet wrench.

Abstract: A ratchet wrench includes a head having a compartment rotatably receiving a drive member. A pawl groove is formed in an inner periphery of compartment and slideably receives two pawls. A slot is formed in a side of the head and in communication with the pawl groove. A first end of a control plate is pivotably mounted to an engaging portion of the drive member extending beyond the side of the head via a hole in the side. A second end of the control plate includes two legs extending through the slot into the pawl groove for actuating the pawls upon rotation of the control plate to change a driving direction of the ratchet wrench. A positioning device is provided to position the control plate.

Abstract: A wrench with a reinforced hollow handle includes a head portion, a hollow handle portion, and a neck portion between the head portion and the handle portion. The handle portion includes a front portion having a wall thickness greater than a wall thickness of a rear portion and includes a necking portion between the front and rear portions having a wall thickness greater than the wall thickness of the rear portion and smaller than the wall thickness of the front portion. The handle portion further includes an open rear end defining a rear end opening at the rear portion thereof. Furthermore, in order to avoid depression of the handle portion resulting from a holding force, the handle portion is made having hardness above 30 HRC.

Abstract: A wrench includes a handle having first and second ends spaced along a longitudinal axis. The second end of the handle includes a first receptacle extending in a radial direction perpendicular to the longitudinal axis. The handle further includes a second receptacle intermediate the first and second ends along the longitudinal axis. The second end of the handle is slideably received in an extension. A positioning hole extends from an inner periphery through an outer periphery of the extension. A first positioning member is mounted in the first receptacle and biased by a first spring to extend through the positioning hole, with a portion of the first positioning member pressing against the inner periphery of the extension. A second positioning member is mounted in the second receptacle and biased by a second spring to press against the inner periphery of the extension.

Abstract: A tool assembly includes a body having a receptacle. An adapter includes a shoulder, a head, and a neck interconnecting the head and the shoulder. The head engages with an inner periphery of the receptacle, allowing joint rotation of the adapter and the body. The head is slideably received in the receptacle between first and second positions. A C-clip is received in a retaining groove in the inner periphery of the receptacle. When the head is in the first position, the shoulder is received in the receptacle, the C-clip distends and clamps the shoulder to keep the adapter to be coaxial to the body. When the head is in the second position, the shoulder is outside of the receptacle, the C-clip abuts an outer periphery of the head, and the head is rotatable to a position such that the adapter is at an angle to the body.

Abstract: A ratchet wrench includes a head rotatably receiving a drive member and slideably receiving two pawls each having a coupling portion. An elastic element is mounted between the pawls to bias the pawls to engage with a coupling section of the drive member. A ring is received in the head and pivotably mounted around an engaging portion of the drive member about a pivot axis. A reversing plate is pivotably mounted around a portion of the engaging portion of the drive member beyond the head about the pivot axis between first, second, and third operative positions. The reversing plate is connected to the ring to allow joint pivotal movement about the pivot axis. The ring includes a tail having two actuating portions respectively and releasably engaging with the coupling portions of the pawls responsive to movement of the reversing plate between the three operative positions.

Abstract: A ratchet wrench includes a drive member rotatably received in a body that includes a compartment extending from a first side toward and spaced from a second side of the body. A control member is pivotable between three operative positions to change the driving direction of the ratchet wrench. The control member includes a first end pivotably coupled to the drive member and a second end covering the compartment. The control member includes a control section selectively engaged with two pawls slideably received in the compartment and releasably engaged with teeth of the drive member. When the control member is in a second operative position, the pawls are engaged with the teeth of the drive member, allowing a handle of the body and the drive member to rotate in either of two directions driving the fastener, and not allowing free rotation of the handle relative to the drive member in either of the two directions without driving the fastener.

Abstract: A ratchet wrench includes a body (10) having a driving portion (11) rotatably receiving a drive member (20; 20?; 20?) and a handle (12) interconnected to the driving portion (11). Two pawls (30) are slideably received in a compartment (14) of the body (10). A control member (40) is slideably mounted on a recessed portion (15) formed on a side (18) of the body (10) and movable between first, second, and third operative positions to change the driving direction of the ratchet wrench. When the control member (40) is in the second operative position, the pawls (30) are engaged with the drive member (20; 20?; 20?), allowing the handle (12) and the drive member (20; 20?; 20?) to rotate in either of two directions driving a fastener, and not allowing free rotation of the handle (12) relative to the drive member (20; 20?; 20?) in either of the two directions without driving the fastener.

Abstract: A ratchet wrench includes a head having a compartment rotatably receiving a drive member. Two gaps are defined between the head and the drive member. The drive member includes a dust groove intermediate the gaps along an axis. The dust groove includes first and second faces spaced along the axis and a third face extending between the first and second faces. A dustproof seal is compressed and received in the dust groove to block communication between the gaps. The seal includes a ring having first and second surfaces spaced along the axis. An outer periphery of the seal presses against a peripheral wall of the compartment. A wing extends from one of the first and second surfaces of the ring, presses against one of the first and second faces of the dust groove, and is not in contact with the third face of the dust groove.

Abstract: A driving tool kit includes at least three driving tools each having an opening for selectively receiving one of first and second fasteners with nominal sizes of different units. The opening includes an inner periphery having a plurality of driving sections. Each driving section includes first and second planar driving faces meeting at an intersection and at an obtuse driving angle to each other. The intersections of the driving sections are capable of engaging with sides of a larger one of the first and second fasteners. The first planar driving faces and the second planar driving faces of the driving sections are capable of selectively engaging with sides of a smaller one of the first and second fasteners. The driving angles of the driving tools are different from one another and can be determined by a method.

Abstract: A caliper includes two legs pivotably connected together at first ends thereof. Second ends of the legs can abut opposite first and second sides of an object to be gauged. Each leg includes first and second faces extending between the first and second ends. A scale is formed on the first surface of each leg. Each leg further includes an inclined surface between the first and second faces. The size of the object is indicated by an intersection of the scales. The inclined surfaces of the legs abut third and fourth faces of the object so that the gauging result is reliable.

Abstract: A ratchet wrench includes a head rotatably receiving a drive member. The head includes an end wall having a hole. One of an inner face of the end wall and an end face of the drive member defines a first abutment face. The other of the inner face and the end face includes an annular groove having a bottom wall defining a second abutment face. A dustproof ring is mounted and compressed in the annular groove. The dustproof ring in an uncompressed state has a natural maximum height along a rotating axis of the drive member larger then a spacing between the first and second abutment faces. The dustproof ring includes three sealing units along a radial direction perpendicular to the rotating axis. Each sealing unit has a thickness along the rotating axis smaller than the spacing.