Abstract: This invention relates to an F figure wrench that comprises a holding rod, a moving part, a turning rod and a driving part. At one end of the holding rod, a concavity is made and two lugs are implemented; the concavity is made as a guide hole to accommodate the moving part, the lug holes of the two lugs are used as pivot holes for the driving part to be pivot-connected with the holding rod. Furthermore, a penetration is made on the holding rod and the moving part concentrically, and intersects through the concavity for installation of the turning rod. A cam eccentric to the turning rod axis is implemented on the turning rod; when the turning rod is turned, the moving part is pushed by the eccentric cam and moving along the guide hole in the holding rod.

Abstract: A wrench includes a lever with teeth formed on the wall of a space defined therein. A handle includes teeth formed on the wall of a space defined therein. A toothed wheel is movable in the spaces between a first position where the teeth of the toothed wheel are engaged with the teeth of the lever and handle and a second position where the teeth of the toothed wheel are only engaged with the teeth of one of the lever and handle. A switch is operable for moving the toothed wheel between the positions. A boss is formed on the handle. A groove is defined in the switch. The arrival at the first position is signaled by the contact of the boss with an end of the groove while the arrival at the second position is signaled by the contact of the boss with another end of the groove.

Abstract: A tool device includes a handle and a driving shank having one end engaged into the handle and rotatably attached and coupled to the handle with a pivot shaft for allowing the driving shank to be rotated relative to the handle from a straight position in line with the handle to a position perpendicular to the handle to form a T-shaped driving tool device. The driving shank includes a number of depressions and the handle includes a spring biased detent member for engaging with either of the depressions of the driving shank and for anchoring the driving shank to the handle at selected angular positions. An actuating member is slidably received in the handle for actuating the detent member to engage with the driving shank.

Abstract: An adjustable prying bar includes a prying head having an arcuate body, a flat tipped lower end a lug at upper end wherein the lug has a circular depression and an inverse stop ring on upper portion and inner thread on lower portion, a handle rotatably engaged with the upper end of the prying head having flat front end with a hexagon hole therein engaged within the lug of the prying head, and a checking mechanism including an upper cover, a lower cover, a hexagon plate and a spring separately engaged with the lug and the hexagon hole of the handle wherein the hexagon plate has a stop ring engageable with stop ring of the lug. Thereby, the angle between the prying head and the handle enables to adjust for larger or smaller than 90 degrees.

Abstract: A ratcheting tool including a handle formed with an integral yoke at a first end and a tool head coupled to the yoke at a pivot. The tool head has a toothed hub facing rearwardly of the pivot and into the yoke. A locking spool is rotatably carried in the yoke adjacent the toothed hub. The locking spool has a first face, a second face, and a first tooth extending along both the first face and the second face and engaging the toothed hub. The locking spool is rotatable between a first position in which the first face is adjacent the toothed hub, thereby locking the tool head in a selected angular position with respect to the handle, and a second position in which the second face is adjacent the toothed hub such that the tool head is pivotable about the pivot.

Abstract: A bi-sectional wrench includes a lever, a handle and a toothed wheel. The lever includes a space defined therein and a plurality of teeth formed on the wall of the space. The handle includes a space defined therein and a plurality of teeth formed on the wall of the space. The toothed wheel is movable in the spaces between a first position and a second position. The teeth of the toothed wheel are engaged with the teeth of the handle and the teeth of the lever so that the handle and the lever are pivoted by a common angular speed in the first position of the toothed wheel. The teeth of the toothed wheel are only engaged with the teeth of the handle or the lever so that the handle and the lever are pivoted by different angular speed in the second position of the toothed wheel.

Abstract: A hand tool includes a head and a pin with toothed outer periphery securely extends through two plates extending from the head. A handle has an insertion which includes an elongate slot and a plurality of teeth are defined in a first inner end of the elongate slot. The insertion is pivotably connected between the two plates of the head by the pin. A pushing member is located in the elongate slot and pushes the pin toward the first inner end of the elongate slot so that the toothed outer periphery of the pin is engaged with the teeth in the first inner end of the elongate slot to position the head. When pulling the head toward the handle, the toothed outer periphery of the pin is disengaged from the teeth in the first inner end of the elongate slot, and the head can be pivoted relative to the handle.

Abstract: A hand tool includes a head which has an insertion and first teeth are defined in an outer periphery of the insertion. The insertion is pivotably connected to a recess between two lugs on a handle and a first biasing device is connected to an inner end of the recess. A control member is located between the insertion and the inner end of the recess, and has second teeth which are engaged with the first teeth. A cam-like protrusion projects from an underside of the control member and includes a curved outer surface which is in contact with the first biasing device. The first and second teeth are disengaged from each other when pivoting the control member so that the head can be pivoted, the first and second teeth are engaged again when the control member are pivoted back such that the head is positioned at a desired position.

Abstract: A hinged socket wrench speed handle having an offset shank (20) with a first end (22) and a second end (24). Attached to the first end (22) is a clevis (28) which receives a 180-degree drive head that is held by a hinge pin (40). The drive head consists of either a square drive head (30) or a ratchet drive head (31). To the second end (24) is attached a handle (58), which rotates the wrench. A second embodiment of the hinged socket wrench includes a second clevis (28) that is added to the second end (24) of the offset shank. The second clevis (28) adds further combinations of angular displacement of the handle (58). Thus increasing the value of the wrench as a tool and also its utility in difficult work areas. The wrench consists of five hinge pin (40) variations which provide additional surface interface with both the hinge pin and the handle yoke, thereby improving the structural integrity and prolonging the tool's life.

Abstract: A hand tool with a swinging structure, including a head section, a handle connected with the head section via at least one swinging joint and a shift button and a resilient unit disposed at the swinging joint. The swinging joint is composed of a first pivot end and a second pivot end pivotally connected with each other. The second pivot end includes a first and a second lugs and a base section connected therebetween. A stopper section is disposed on the base section. A stopper block is formed on an inner face of the shift button. The shift button is transversely and back and forth movably positioned between the two pivot ends. The resilient unit serves to resiliently push the shift button toward the first pivot end, whereby a front end of the shift button keeps engaged with the first pivot end. When the shift button is transversely shifted to a disengaged position, the stopper section will not interfere with the stopper block, permitting the swinging joint to swing.

Abstract: A wrench includes a handle, a head having a pivotal portion pivotably connected to an end of the handle, and a retaining mechanism. The pivotal portion of the head includes two end portions and an intermediate portion between the end portions. The intermediate portion includes an arcuate outer surface section that has teeth to be releasably engaged with the retaining mechanism, allowing the head to be pivotally moved to a desired position relative to the handle and retaining the head in the desired position. Thus, the thickness of the respective end portion of the pivotal portion of the head is not reduced, preventing damage to the torque-bearing section in the respective end portion of the pivotal portion during operation.

Abstract: A hand tool having an adjustable head with a joint lock mechanism. The joint lock mechanism comprises a first engaging device, a push button, a second engaging device, a first elastic device and a second elastic device. The push button is formed with a through hole and a first engaging portion. The second engaging device passes through the through hole and is disposed with a second engaging portion. When the first engaging portion engages the second engaging portion, the front end of the first engaging portion abuts the front end of the second engaging portion such that the second engaging device engages the first engaging device and is prevented from moving.

Abstract: A hand tool having: a head provided at an end thereof with an arcuate face and a handle, connected to the head to allow rotational movement in relation to the head. The handle is formed with a first receiving hole, a second receiving hole and a third receiving hole communicating with the second receiving hole. A positioning and locking joint, including: a first stop mechanism is received in the first receiving hole, and has an end constantly urged against one of a plurality of teeth formed on the arcuate face of the head. A second stop mechanism is received in the second receiving hole and has an end selectively engaging one of the teeth on the arcuate face of the head An operative pin is received in the third receiving hole for controlling the second stop mechanism to engage with or disengage from one of the teeth.

Abstract: A wrench includes a handle and a set of driving members to be selected to be coupled to the handle. Each of the driving members has a connecting portion complementary to the connecting portion of the handle. A coupling device is disposed at the connecting portion of the handle to detachably coupling the connecting portion of the driving member and the connecting portion of the handle. The coupling device forms a rotation axis of the driving member, such that the driving member can rotate. As a result, the driving members can be replaced quickly to the handle to meet the specific work.

Abstract: A hand tool having an adjustable head with a joint lock mechanism. The joint lock mechanism includes a first engaging device, a second engaging device, a pull button and a first elastic device. The pull button has a knob portion and an engaging portion beneath the knob portion and the engaging portion engages the second engaging device. The first elastic device is received in a first aperture and abuts against the second engaging device with a forward force such that the front end of the second engaging device is pushed to engage the first engaging device.

Abstract: A swing head structure of a wrench with two kinds of torque output includes a head part and a handle pivotally coupled together by a shaft, the wrench can also be used as a ratchet wrench or can rotate the handle backwards and forwards to make the head part to rotate in one direction, the rotating direction can be changed, the swinging movement of the head part does not affect the rotation and transmission of the wrench and the handle, the swinging head part includes two kinds of torque output to the wrench.

Abstract: A handle of a hand tool includes two opposite wide surfaces and two opposite narrow sides. The wide surfaces are perpendicular to the rotational direction when using the tool so that the fingers except for the thumb are in contact with the wide surfaces. Each wide surface has a reinforcement protrusion extending perpendicularly therefrom and located close to the driving end of the hand tool. Each reinforcement protrusion includes a thumb area such that the user's thumb may press on the thumb area when rotating the handle.

Abstract: The invention relates to a wrench for manipulating lock nuts on cable clamps and conduit for securing electrical cable or conduit to electrical boxes. The wrench is useful for accessing difficult positions in a box such as securing a cable to a corner opening or in a back row of a box having multiple rows of cables. The wrench comprises a central handle shaft, two transition sections, one extending on either side of the handle shaft, and two arc shaped heads, one arc shaped head extending from each transition section, such that each arc shaped head is displaced at an angle to the handle shaft and at a distance normal to the handle shaft. Each head comprises at least two tabs for engaging a lock nut.

Abstract: A hand tool having an adjustable head comprises a head, a handle, a fastening device and a joint lock mechanism, characterised in that: a bottom side of a concave pivotal portion of the handle has an inclining surface inclining forwardly from a first side of the concave pivotal portion to a second side of the concave pivotal portion; the joint lock mechanism comprises: a first engaging device and a second engaging device; the second engaging device comprises a pull button and a biasing device. The pull button is moveable from an unlocked position at the first side of the concave pivotal portion to a locked position at the second side of the concave pivotal portion. The biasing device is disposed at a front end such that when the pull button is at an unlocked position, a gap is formed between a rear end of the pull button and the bottom side of the concave pivotal portion; when the pull button is at a locked position, a front end of the pull button is adapted to engage the first engaging device.

Abstract: A wrench includes a tool head having a number of teeth formed in a chamber, and a handle having a shaft rotatably engaged into the chamber of the tool head and having a channel laterally formed in the shaft, a stem is engaged into the channel of the shaft, and includes one or more actuators. A follower is slidably received in the channel of the shaft, and includes one or more teeth for engaging with the teeth of the tool head, and for selectively locking the handle to the tool head at selected angular position. The follower includes a space formed by an inner peripheral surface, for engaging with the actuators. One of the actuators may force the teeth of the follower to solidly engage with the teeth of the tool head.

Abstract: An extension tool includes a shaft having an annular groove and an orifice and an aperture formed in a front portion, to receive a retaining ring and a ball and an insert. A stem is slidably engaged into the shaft and includes a number of depressions for selectively receiving the ball, and for adjustably securing the stem to the shaft. A control ferrule is engaged onto the shaft, and has a protrusion biased to force the ball to engage into either of the depressions of the stem. A spring-biased projection is attached to a rear portion of the stem, and has a detent movable to engage into the aperture of the shaft, to lock the stem to the shaft, and to prevent the stem from being disengaged from the shaft inadvertently.

Abstract: A wrench includes a box end head with a protrusion extending therefrom and the protrusion has an inclined surface defined in a distal end thereof and a first engaging area defined in a part of the inclined surface. The protrusion is pivotably connected to the handle which has a transverse hole and a control member is movably received in the transverse hole along a longitudinal direction of the transverse hole. The control member has a second engaging area removably engaged with the first engaging area along the longitudinal direction of the transverse hole. The head can be pivoted relative to the handle when the second engaging area is moved away from the first engaging area by pushing the control member.

Abstract: The present invention relates to a ratchet wrench having a pivotal head, which generally includes a handle, an elastic plate, an elastic block and a pivotal head. Wherein the handle is defined with a slot at an end thereof, the elastic block is defined at an end thereof with an engaging portion, and at another end thereof is formed with a notch for the reception of the elastic plate. With the help of the elastic plate, the elastic block is movably received in the slot of the handle of the ratchet wrench. At end of the pivotal head is formed with a coupling portion which is to be received in the slot of the handle, so as to engage with the engaging portion of the elastic block. By such arrangements, the ratchet head of the wrench can change the operational angle relative to the handle, so as to improve the applicability of the ratchet wrench.

Abstract: A wrench includes a first handle provided with a first rotation seat, and a second handle provided with a second rotation seat rotatably mounted on the first rotation seat of the first handle. Thus, the first rotation seat of the first handle can be rotated relative to the second rotation seat of the second handle, so that the first handle has a driving face inclined with that of the second handle, thereby facilitating the user operating the first handle or the second handle to rotate the workpiece.

Abstract: A wrench includes a head, a first handle, a second handle and a retaining device. The first includes first and second end. The first end of the first handle is pivotally connected with the head about a first axis. The second handle is pivotally connected with the second end of the first handle about a second axis. The retaining device can retain the first handle in position relative to the head, and the second handle in position relative to the first handle.

Abstract: A wrench structure includes a body, a rotation member, a drive rod, a press rod, and an elastic member. The rotation member is rotated relative to the body freely so as to adjust the included angle between the rotation member and the body arbitrarily. Thus, the operation angle of the wrench structure can be adjusted arbitrarily, thereby facilitating the user operating the wrench structure. In addition, the drive rod is limited by the rotation member, so that the drive rod is received in the body without detachment. Further, the press rod is limited by the drive rod, so that the press rod is received in the body without detachment.

Abstract: A wrench includes a handle, a head having a pivotal portion, and a retaining mechanism for retaining the head in the desired angular position relative to the handle. The pivotal portion of the head includes a fore lug and a rear lug that are located with reference to a ratcheting direction of the handle. The handle has an engaging portion pivotally received in an opening between the lugs. Teeth are defined in an arcuate outer surface section of the fore lug. The thickness of the rear lug is not reduced, avoiding damage to the torque-bearing section in the pin hole of the rear lug.

Abstract: The device has affair of handles each coupled to a tong, which are movable to clamp or release the target. A ratchet mechanism couples to a handle to re-vector the handle in order to reduce the operational footprint of the device to accommodate obstacles and operate successfully in confined and limited access spaces. Operation of the apparatus allows the action to be accomplished over a variable number of strokes, with the distance of each stroke, and thus the arc of the handles traversed, varying with each stroke, while still accomplishing the desired action.

Abstract: This invention relates to a kind of spanner with an improved handle, comprising a spanner body, a lengthening bar and a positioning set, wherein the lengthening bar is set on one end of the spanner body, and the positioning set is between the spanner body and the lengthening bar. The spanner is used as a common spanner or lengthened for operations in special occasions, and the scope of application is enlarged. The positioning set is used to position the spanner body and the lengthening bar accurately, and the spanner is easy to handle and store.

Abstract: A saw having an angle adjustable blade includes a handle and a blade. The handle includes a body and a ratchet structure. The ratchet structure includes a positioning member and a ratchet rod. Thus, the angle of the blade relative to the handle may be adjusted arbitrarily by rotating the blade relative to the handle, without having to change and adjust the angle of the handle, thereby facilitating the user operating the handle, and thereby preventing the user's wrist from being hurt.

Abstract: A tool includes a driving head rotatably secured to a handle, an actuator member rotatably received in the driving head and having a depression and one or more recesses of different depths. Two detent members are biased to engage with the depression and the recess of the actuator member and to engage with the handle respectively. A rod is extended from one of the detent members and spaced away from the other detent member for different distances when the detent member is engaged with the depression and the recess of the actuator member.

Abstract: A wrench comprising a wrench head with a stud at one end, a handle, including a handle end with a second stud at one end and an intermediate handle having yokes at opposed ends. A first yoke is pivotally engaged with the wrench head stud and a second yoke is pivotally engaged with the handle end stud. A plurality of paired detent surfaces are arranged over end portions of the yokes and cooperates with a detent ring carried by the handle end. The intermediate handle includes a longitudinal bore and a transverse bore which passes through the longitudinal bore. A positioning member, movable between a locking position and a non-locking position, is carried in the transverse bore. An engaging member, movable between an engaged position and a disengaged position, is carried in the longitudinal bore. The positioning member is positionable to positively lock the engaging member with an associated stud and to allow the engaging member to become disengaged from the stud.

Abstract: A rotatable tool handle device includes a handle having a chamber for receiving a spring biased latch, a shank having one end rotatably secured to the handle with a pivot shaft and having two cavities. A latch is slidably engaged in the chamber of the handle, and guided to move relative to the handle, and has a tongue for solidly engaging into either of the cavities of the shank and for securing the shank to the handle at a selected angular position. A spring may bias the tongue of the latch to solidly engage with either of the cavities of the shank.

Abstract: An adjustable mechanism is mounted in a wrench. The mechanism comprises a cylindrical projection extended from a head of the wrench, the projection including a bore, a recessed portion on one end, and a plurality of dents on the other end around the bore; and a substantially U-shaped joint means at one end of a handle of the wrench, the joint means including a recess, a hole through two vertical portions of the joint means, an aperture adjacent the hole, an elastic member biased between the recessed portion and an inner side of one of the vertical portions, a pin through the hole and the bore to rotatably secure the projection and the joint means, a threaded aperture adjacent the hole, and a depressible spring detent secured within the aperture for urging against one of the dents in a normal position. Handle is pivotable to move detent from one dent to the other for adjusting an angle of wrench head with respect to handle.

Abstract: A rotatable tool handle device includes a handle having a chamber for receiving a spring biased latch, a shank having one end rotatably secured to the handle with a pivot shaft and having a number of cavities. A latch is slidably engaged in the chamber of the handle, and guided to move relative to the handle, and has a tongue for solidly engaging into the either of the cavities of the shank and for securing the shank to the handle at a selected angular position. A spring may bias the tongue of the latch to solidly engage with either of the cavities of the shank.

Abstract: A ratchet wrench is provided which includes a ratchet head having a part-cylindrical surface with head teeth thereon and an elongated handle hingedly coupled to the head. The handle has first and second handle ends, an axis extending between the ends and an axial first bore opening at the first handle end. The wrench also includes a rod disposed in and moveable within the first bore between an engaged condition engageable with the head teeth for locking the head in a selected position relative to the handle and a non-engaged condition disengaged from the head teeth and accommodating relative movement of the head and handle, and biasing structure for biasing the rod to the engaged condition. The wrench also includes retaining structure coupled to the rod for retaining the rod in its non-engaged condition. The retaining structure may be disposed at several locations relative to the ratchet head.

Abstract: A baton structure is provided. The baton structure includes a knocking cylinder and a hollow connecting tube integrally extending from a surface of the knocking cylinder. A handle is pivotably mounted to the hollow connecting tube so that the handle is foldable to reduce the storage volume of the baton structure.

Abstract: Standard flex-head wrenches and other standard wrenches having a head or fastener end-working portion are improved by adding a second and even third joint within the handle portion of the wrenches. The additional joints may comprise the standard ball bearing detent and mated groove pinion portion alone in structure or in conjunction with a locking sleeve, which aids in biasing the handle in any number of predetermined positions.

Abstract: Pliers for use in a narrow space, including: a pair of neck sections which are pivotally connected with each other by a shaft rod and can be opened and closed; a pair of jaw sections located on one end of the neck sections in the same direction to define a pliers mouth; and two grips disposed at the other ends of the neck sections for a user's hands to hold and control the jaw sections to open or close. At least one of the grips is pivotally connected with a corresponding neck section, whereby the grip can be rotated about an axis parallel to a longitudinal direction of the pliers into different operation aspects and adapted to different operation sites.

Abstract: Pliers for use in a narrow space, including: a pair of neck sections which are pivotally connected with each other by a shaft rod and can be opened and closed; a pair of jaw sections located on one end of the neck sections in the same direction to define a pliers mouth; and two grips disposed at the other ends of the neck sections for a user's hands to hold and control the jaw sections to open or close. Each of the grips is pivotally connected with a corresponding neck section, whereby the grips can be rotated about the pivot section and converted into different operation aspects and adapted to different operation sites.

Abstract: A tool includes a handle and a frame is disengagably connected to the handle. A head having a wrench device is pivotally connected to the frame and a hammer piece is connected to the head. The frame has two arms and each arm having a plurality of apertures and the head has a ball extending from each one of two sides thereof so as to be engaged with one of the apertures. The handle has a blade slidably received therein and can be extended from the handle when the head and the frame are removed from the handle.

Abstract: A hinged socket wrench for use with tool sockets which utilizes an offset shank (20) at bends of equal angles, which place the ends parallel with each other. A clevis (28) is formed into the shank at one end and a square drive head (30) is held in place within the clevis with a hinge pin (40), thus permitting a 180 degree rotation. The wrench secures a workpiece by spinning the offset handle in a circular direction and then pushed to a convenient position for tightening. The wrench may be used as a conventional flex handle by locking the drive head in an angular position in five equal increments by sliding the hinge pin (40) to the appropriate position. A second embodiment includes another head attached directly to both the handle (58) and an additional clevis which functions in the same manner as the square drive head however it adds further combinations of angular displacement of the speed handle increasing its value as a tool and also its productiveness in difficult work areas.

Abstract: A ratchet tool includes a housing having an internal gear, a shank rotatably secured in the chamber of the housing and having two notches formed between a partition and two actuating surfaces for rotatably receiving two pawls, and a spring engaged between the pawls for biasing the pawls to engage with the internal gear. A control ferrule is rotatably engaged on the shank and includes two blocks for selectively disengaging the pawls from the internal gear. The actuating surfaces of the shank may be used for solidly engaging the pawls with the internal gear.

Abstract: A wrench structure including a main body, a pivot block pivotally connected with the main body, a projecting block pivotally connected with the pivot block and a grip pivotally connected with the projecting block. A first engaging mechanism is provided between the pivot block and the main body. A locating unit is disposed between the projecting block and the pivot block. A second engaging mechanism is disposed between the grip and the pivot block. The first engaging mechanism serves to control the main body to be engaged with the pivot block and located at different angles from the pivot block. The locating unit serves to control the projecting block to engage with or disengage from pivot block to be free to rotate. After the grip is pivotally rotated to contain different angles with the pivot block, the second engaging mechanism serves to locate and fix the grip with the pivot block.

Abstract: A tool includes a shaft with a polygonal rod movably received therein and the polygonal rod has an engaging end. A connection member is pivotally connected to an end of the shaft and another polygonal rod movably extends through the connection member. Two engaging ends are connected to two ends of the polygonal rod connected to the connection member. Each engaging end is cooperated with a socket. The connection member is pivoted to let the two polygonal rods be located in parallel with each other.

Abstract: In order to provide a hand machine tool comprising an elongated housing, a drive motor which is arranged in the housing and with which a tool holder can be driven via a miter gear, a first handle unit arranged on a housing section located close to the tool holder and aligned transversely to a longitudinal axis of the housing and a second handle unit arranged on the housing, with which the alignment of the first handle unit relative to the axis of rotation of the tool holder may be varied, it is suggested that the first handle unit be held for guidance in an adjusting guide means on the housing and in this adjusting guide means be adjustable within an angular range of at least 90° about a longitudinal axis of the housing between several possible positions and be fixable in a positive-locking manner in the respective position.

Abstract: A ratchet wrench is provided with an angle adjusting device having drive head, a handle, and a button. The drive head is provided at one end thereof with a pivoting end. The handle is provided at one end thereof with two pivoting lugs for fastening the pivoting end of the drive head. The handle is further provided at one end thereof with a receiving slot for receiving the button in conjunction with a spring and a steel ball. The button is provided with an eccentric slot for receiving the spring, a notch corresponding in location to the ball-locating slots of the pivoting end of the drive head, and an inclined plane. The button is urged by the spring such that the steel ball is forced by the inclined plane of the button to locate in one of the ball-locating slots of the pivoting end of the drive head. As the button is pressed, the steel ball is located in the notch of the button to enable the drive head to be adjusted angularly in relation to the handle.

Abstract: A composite insulating breaker bar includes an elongated shaft formed of pultruded glass/polyester material, having a reduced end adhesively secured in an axial bore in a plastic handle, and a working end adhesively received in one end of a composite sleeve made of alternating layers of braided and longitudinal glass fibers in an epoxy resin matrix. Press-fitted in the other end of the sleeve is a swivel yoke insert including a knurled body and a pivoting square drive lug, pivotal movement of the square drive being accommodated by a diametral slot formed axially in the distal end of the sleeve.

Abstract: A ratcheting tool includes a head including an end with an arcuate toothed face and a handle having an end defining a compartment for pivotal connection with the end of the head. The handle includes a longitudinal hole having an inner end and an outer end communicated with the compartment. The handle further includes a transverse hole communicated with the inner end of the longitudinal hole. A catch is mounted in the longitudinal hole and includes a first end with an arcuate toothed surface and a second end. A push button is mounted in the transverse hole and includes a stem, the stem including a relatively higher portion and a relatively lower portion. An elastic member biases the push button to a retaining position in which the second end of the catch engages with the relatively higher portion of the stem such that the arcuate toothed surface of the catch is biased to engage with the arcuate toothed face of the head, thereby retaining the head in an angular position relative to the handle.

Abstract: A tool, such as an adjustable wrench, has an adjustment mechanism to allow the operator to alter the angle of the tool head with respect to at least a portion of the tool handle. The adjustment mechanism, in a preferred embodiment, utilizes a pair of wings, one or both of which may be pushed rearwardly along the handle to disengage the locking mechanism from the tool head to allow for an operator to alter the angle of the tool head with respect to the handle. In a preferred embodiment, the locking mechanism has at least two teeth which engage a toothed hub which faces rearwardly of a pivot point on the tool head and is held into position by a spring when not disengaged by an operator.