Abstract: An impact wrench, includes a housing including a handle. A rotating anvil is supported by the housing and includes a polygonal head adapted for receiving a socket thereon. A socket retention device is mounted to the polygonal head of the rotating anvil for securing a socket to the polygonal head. A socket release mechanism includes an actuator mounted to the housing and operable to disengage the socket retention device from the socket to allow the socket to be removed from the anvil.

Abstract: A power tool assembly includes an anvil having an accessory receiving end portion that defines a detent bore. A detent is positioned in the detent bore and movable between a retracted position and an extended position in the detent bore. A biasing member is configured to urge the detent toward the extended position. The detent includes an upper detent portion having a trailing abutment surface, a trailing top surface portion, and a leading top surface portion. When the detent is positioned in the extended position, the trailing abutment surface and the trailing top surface portion are located outside of the detent bore, and the leading top surface portion is located within the detent bore. When the detent is positioned in the retracted position, the trailing abutment surface is located within the detent bore, and the leading top surface portion is located within the detent bore.

Abstract: A drill wrench for driving drill steels, drill bits, and bolts during drilling and bolting operations is disclosed. The drill wrench may include an internal driver for driving a drill steel. The internal driver may be inserted in an internal-drive recess defined within an end of the drill steel. When the drill wrench is rotated, the internal driver may drive the drill steel by engaging at least one surface within the end of the drill steel. The drill wrench may also include an external support member that supports the drill steel during drilling. The external support member may also drive the drill steel by engaging an outer peripheral portion of the drill steel when the drill wrench is rotated.

Abstract: A wrench assembled structure comprises a wrench head including an inserting portion, and the inserting portion including a neck portion connected with a crank, the crank including a head end mounted on a top end thereof, a gap of the head end including a hexagonal recess disposed on a rear end thereof, and the recess including a U-shaped retaining side arranged on an upper section thereof; a handle including a shank inserted to a shaft member, having a groove formed on a top end of the shank, and having an inner wall which includes a resilient piece fixed therein, and including a ball and a locking peg retained therein, the shaft member including an engaging section and a chamfer section formed therein.

Abstract: A pivot head wrenching tool includes a handle, a switch, a pawl, a torsion spring, and a pivotal driving head. The pivot head wrenching tool is operable in a lock mode in which the pivotal driving head is restrained from being pivoted and in an unlock mode in which the pivotal driving head is able to be pivoted. The switch is in a first position and includes a first surface abutted against the pawl as well as the pawl is engaged with a connecting end of the pivotal driving head when the pivot head wrenching tool is in the lock mode. The switch is in a second position and includes a second surface gapped from the pawl as well as the pawl is disengaged from the connecting end of the pivotal driving head when the pivot head wrenching tool is in the unlock mode.

Abstract: A hand tool includes handle, a connector mounted on the handle and having an inner wall provided with a mounting hole and a peripheral wall provided with a plurality of positioning holes, a drive member mounted on the connector and having a first end provided with a fixing portion which is detachably mounted in the mounting hole of the connector and has a peripheral wall provided with a fixing groove, a plurality of locking balls movably mounted in the positioning holes of the connector and movable into the fixing groove of the drive member to lock the drive member onto the connector, and a control sleeve movably mounted on the connector and movable to press or release the locking balls. Thus, the drive member can be detached from the connector to facilitate a user replace the drive member.

Abstract: An adapter for a socket wrench includes a shaft with two socket drivers disposed along the shaft. Each of the socket drivers can, independent from one another, rotate around the shaft and slide along the shaft in either direction. There are two stops at each end of the shaft to prevent the socket drivers from falling off the shaft. The socket drivers can be attached to a variety of different socket accessories and sockets so that torque applied to one of the socket drivers can be multiplied and exerted at the end of the other socket driver. One particular embodiment includes a shaft and pedal that aids a person in correctly and easily tightening or loosening lug nuts.

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: The present invention discloses a ratchet wrench, which includes a body, a driving head, a fixing disk and a rotatable member. The body has a ring-shaped head with internal teeth therein. The driving head is located in the ring-shaped head and has a top portion which has a reception recess and a pawl is located in the reception recess. The pawl has engaging teeth on two ends of the front thereof and two curved surfaces are formed on the back of the pawl. A spring is located in the reception recess so as to bias the back of the pawl. The rotatable member is located on the top of the ring-shaped head and has two driving pins which shift the spring to pivot the pawl such that the engaging teeth in one of the two ends of the pawl are engaged with the internal teeth to control the driving head to rotate in one direction.

Abstract: A telescoping extension tool for use in combination with a socket wrench is disclosed herein. Embodiments of the telescoping extension tool are installed onto the socket wrench to extend the reach of the socket used in combination with the socket wrench. Because the extension tool is telescoping, the reach of the telescoping extension tool is infinitely adjustable between the shortest extension and the longest extension of the telescoping tool. Additionally, the external surfaces of certain components of embodiments of the present invention allow the use of other tools designed to grip hexagonal shapes to supply the rotation and torque necessary to loosen or tighten fasteners.

Abstract: A self-centering drive socket device and associated installation method. The device includes a socket member, coupler and sliding lock body. The sliding lock body is preferably connected to a drive mechanism that provides rotational movement. The device and method allows for the installation of misaligned fasteners by disengaging the sliding lock body from a cavity in the coupler so that the socket member becomes freely angularly displaceable with respect to a central axis of the device.

Abstract: A multiple-link tool assembly includes an elongated handle, an exchangeable extension link, and an exchangeable tool link. The exchangeable extension link has a first connecting end removably linked to the handle, and a second connecting end defining a sectioned cavity. The sectioned cavity includes a reduced-diameter internally serrated cavity section and an enlarged-diameter non-serrated cavity section. An adjustable geometric fitting having an externally serrated base is received and retained within the sectioned cavity. A spring is located within the non-serrated cavity section, and is adapted for normally urging the externally serrated base of the geometric fitting into the internally serrated cavity section. The exchangeable tool link has a proximal end removably joined to the geometric fitting of the extension link, and a fastener-engaging distal end adapted for engaging a threaded fastener.

Abstract: A low profile ratchet wrench incorporates a ratchet gear drive having a female section of a socket or tool drive interface. The socket incorporates a male section for attaching the socket to a ratchet drive head section. By utilizing a female section of the interface in the wrench, the projected height of the socket is reduced as compared to a standard socket. An optional female section can be a cavity provided within the male section of the socket or other tool, allowing the tool to be used on both a standard wrench and a low profile wrench. A snap ring is disposed within a recession about an engaging end of the male section. The snap ring rests against a chamfer in a peripheral edge of the female drive tool interface securing the socket with the gear. Accessories can include attaching section style adapters, size adjusting adapters, extensions, universal joints, and wobble features.

Abstract: Various embodiments of the invention provide a tool for adjusting a military phone jack. A tool for adjusting a military phone jack, the tool comprising a modified head cap screw, an expanding split collet, a collet receiver shaft, and a jam nut driver. The modified head cap screw has an edge of the head cap machined to an angle between 1 and 89 degrees with respect to the unmachined portion of the head cap which is further from the screw shaft. The expanding split collet comprises a central hole throughout its longitudinal axis with the hole of sufficient diameter to receive the modified head cap screw, two or more slits through the exterior wall of the collet and extending from one end of the collet, and a machined inner diameter of the end of the collet having the slits, the angle of the machined inner diameter matching the angle on the head cap of the modified head cap screw.

Abstract: A safe and quick release device for a tool adapter includes a main body and a combination head. The main body has its front end axially bored with a combination groove with an open end. The combination groove has its opposite sides respectively bored with at least one position-limiting hole having its opposite ends respectively and annularly formed with a first position-limiting portion and a second position-limiting portion. A spherical position-limiting member is slidably disposed in the position-limiting hole and restrictedly positioned therein by the first and the second position-limiting portion. Thus, the position-limiting member is ready made, needless to be especially processed, can easily be in stalled for facilitating assembly and disassembly of the combination head, reducing processing cost.

Abstract: A tool coupling structure comprises a first post member including a fitting end disposed on one end thereof and a polygonal cavity mounted on another end thereof; the cavity including a hole formed on an outer wall thereof, and the hole including a biasing element installed therein; a second post member including a coupling end fixed on one end thereof and a polygonal sphere knob formed on another end thereof to be fitted to the cavity of the fist post member, and the sphere knob including an elastic engaging member fixed on a peripheral side thereof in response to the hole of the first post member to be retained in the hole.

Abstract: A bit mounting device includes a holder that may be mounted to a spindle of the power tool or may be a part of the spindle. A bit push member is disposed within a bit receiving hole that is formed in the holder for receiving a tool bit. The movement of the operation member is transmitted to the bit push member via a transmission mechanism, so that the tool bit is pushed in a removing direction from the bit receiving hole by the bit push member.

Abstract: A securing mechanism is provided for a tool that allows for the attachment and release of the shafts of a variety of implements from the tool. The mechanism has a construction that provides an easily releasable, but secure engagement of the implement shaft within the mechanism while also having an alignment feature which engages the implement at multiple locations when engaged with the mechanism to maintain the alignment and concentricity of the implement shaft with regard to the mechanism and the tool when in use.

Abstract: An extension rod includes a body having an axial passage and a restriction hole and a positioning hole are respectively defined radially in the body and communicate with the axial passage. A shaft of a control member is rotatably inserted into the positioning hole and includes a recess defined in radially which is located within the axial passage. An operation rod is axially movably inserted into the axial passage and a spring is biased between the operation rod and an end piece which seals the axial passage. The operation rod is engaged with the recess and includes first and second dents in different depths. When rotating the shaft, the first and second dents are movable to receive a bead in the restriction hole such that the bead is control to protrude out from the restriction hole to position or release a socket mounted to the body.

Abstract: A tool extension rod which is adapted to be connected to or disconnected from a socket essentially comprises a rod body, a positioning unit, and a pushing sleeve. If the socket is connected to the rod body and fixed by the positioning unit, the pushing sleeve can be pushed to control the positioning unit so as to loosen and remove the socket from the rod body without any additional manual operation.

Abstract: A tool assembly for a rotary hammer is provided. The tool assembly includes an adapter and a drive socket removably mounted on the adapter. The adapter has a first end portion configured to be held by a chuck of the rotary hammer and a second end portion that includes a socket square drive fitting on which the drive socket is removably mounted. The socket drive fitting can have any suitable size. For example, the socket drive fitting can be a ¼ inch, a ? inch, a ½ inch, or a ¾ inch square drive fitting.

Abstract: A tool may loosen seized bolts by sending shock waves into the bolt shank and thread areas via axial blows with a pneumatic hammer on the center of the bolt head prior to removal. The tool may allow impacts to be centered on the bolt head without damaging the bolt head or without worry of the bit jumping off the bolt. The tool may be comprised of a separate driver and one or more sockets.

Abstract: A universal joint includes first and second parts interconnected by a coupling element, and a coupling mechanism for detachably engaging tool attachments such as sockets. The disclosed coupling mechanisms include an engaging element and an actuating element. The engaging element can include a pin, and the pin can be oriented either obliquely or longitudinally in the drive stud of the universal joint. The actuating element can include a collar and a central portion that crosses the central longitudinal axis of the drive stud. The central portion can be offset along the longitudinal axis toward the coupling element, and the actuating element can be configured to extend into an aperture formed by the coupling element and the second part of the universal joint.

Abstract: A universal joint includes a coupling member having an end for coupling with a tool. A body includes a rounded base pivotably mounted to the other end of the coupling member. The body further includes a drive column spaced from the rounded base along an axis. A reinforcing section is intermediate the rounded base and the drive column. The reinforcing section includes an outer periphery having a recessed portion with a receptacle extending in a radial direction perpendicular to the axis. A control member is moveably received in the receptacle to control coupling of the drive column and an object to be driven. In any case, a spacing from an outer end of the control member to the axis in the radial direction is substantially not larger than a spacing from the outer periphery of the reinforcing section to the axis in the radial direction.

Abstract: A two-section tool joint comprises a first rod, an engaging element, a second rod and a limiting element. The two-section tool joint utilizes an elastic engaging structure to obtain an engaging effect during a multi-angle screwing/unscrewing operation, meanwhile, the tool joint can be fixed stably, avoiding the retraction of the tool joint and reducing the difficulty and inconvenience of the screwing/unscrewing operation.

Abstract: A body having one or more apertures to receive a variety of detachable utility inserts. The body being shaped with a spherical ball retainer member and/or a torsion bar for engaging a corresponding spherical indentation and notch formed on the utility insert. The body further including a lever for locking and unlocking the utility insert from the body.

Abstract: A tool extension for a socket wrench includes a jointed, articulated series of square-drive male/female adapter ends with intermediate couplers having hex ball-head and socket joints. Three such intermediate couplers together in one series allow for an overall 90-degrees of flex. Each coupler has a bell body over which a pliable control cover is stretched. Each hex ball head and socket joint is bridged over by a corresponding pliable control cover which then snaps over a retaining lip just under a neck.

Abstract: A discontinuous drive power tool assembly for generating rotational torque. The tool assembly includes a spindle having a first end portion configured to receive a socket. The first end portion has a primary engaging surface and a tapered surface spaced from a distal end of the first end portion. The primary engaging surface and the tapered surface are configured to engage corresponding surfaces on the socket. The tool assembly also includes a pulse hammer engagable with a second end portion of the spindle that is opposite the first end portion, and a motor including a motor shaft engagable with the pulse hammer, the motor being configured to rotate the pulse hammer.

Abstract: Coupling mechanisms for engaging and releasing a tool attachment such as a socket from a drive element include an engaging element and an actuating element. The actuating element can include a collar or other manually-accessible part, and various features allow for a relatively small outside diameter for the collar or other part. These features include configuring the actuating element to contact the engaging element within the drive element, placing the biasing elements within the drive element, and forming guides for parts of the actuating element within the drive element. Also, the engaging element can move along a direction that is oriented at an oblique angle to the longitudinal axis of the drive element, in whole or in part. The engaging element can have a first part that moves obliquely in the drive element and a second part that moves radially in the drive element to engage the tool attachment.

Abstract: A quick-release coupler includes a rod having first and second sections. The first section includes an end for coupling with a pneumatic tool. The second section extends from the other end of the first section. A sleeve is slideably mounted around the rod and includes an end for releasably coupling a bit. The sleeve includes an axial bore having larger and smaller sections. The larger section has polygonal cross sections corresponding to polygonal cross sections of the first section. A radial bore is formed in the sleeve and in communication with the smaller section. A ball is moveably received in the radial bore and moveably received in a recess of the second section of the rod to releasably engage the sleeve with the bit. A spring is mounted in the larger section of the sleeve for biasing the sleeve towards the other end of the rod.

Abstract: A bit holder includes a shank, and a bit sleeve. The shank has a first end portion of a non-circular geometric equiangular cross-section for combining a hand tool, and a second end portion formed with a combining hole having female threads in its wall. The bit sleeve has a through hole for a bit to extend therein, male threads and a circular circumference. The bit sleeve is combined with the shank by engagement of the male threads with the female threads, and the bit sleeve may be rotated to fix with or loosen from the shank by an auxiliary tool for changing the bit. In assembling, the bit is inserted through the through hole of the bit sleeve, and then the male threads of the bit sleeve are engaged with the female threads of the shank by an auxiliary tool fitted with the circular circumference and rotated to keep the bit combined with the shank, with the bit sleeve pressing the bit so as to minimize the tolerance of the gap between them, thus enabling the bit to drive a screw smoothly into an object.

Abstract: A universal joint includes first and second parts interconnected by a coupling element, and a coupling mechanism for detachably engaging tool attachments such as sockets. The disclosed coupling mechanisms include an engaging element and an actuating element. The engaging element can include a pin, and the pin can be oriented either obliquely or longitudinally in the drive stud of the universal joint. The actuating element can include a collar and a central portion that crosses the central longitudinal axis of the drive stud. The central portion can be offset along the longitudinal axis toward the coupling element, and the actuating element can be configured to extend into an aperture formed by the coupling element and the second part of the universal joint.

Abstract: Coupling mechanisms for engaging and releasing a tool attachment such as a socket from a drive element include an engaging element and an actuating element. The actuating element can include a collar or other manually-accessible part, and various features allow for a relatively small outside diameter for the collar or other part. These features include configuring the actuating element to contact the engaging element within the drive element, placing the biasing elements within the drive element, and forming guides for parts of the actuating element within the drive element Also, the engaging element can move along a direction that is oriented at an oblique angle to the longitudinal axis of the drive element, in whole or in part. The engaging element can have a first part that moves obliquely in the drive element and a second part that moves radially in the drive element to engage the tool attachment.

Abstract: A tool may loosen seized bolts by sending shock waves into the bolt shank and thread areas via axial blows from a pneumatic hammer on the center of the bolt head prior to removal. The tool may allow impacts to be centered on the bolt head without damaging the bolt head or without worry of the bit jumping off the bolt.

Abstract: The housed socket extension has a high strength tubular housing with a socket extension apparatus which fits within the housing and protrudes from the ends of the housing. Two bearing retaining devices are mounted on the socket extension apparatus, adjacent to the ends of said housing. The first end of the socket extension receives a ratchet wrench or power tool, and the second end of the socket extension apparatus is designed to mate with the square hole of a socket or tool bit.

Abstract: A firefighter multi-tool, comprising a head assembly having at least one interchangeable tool head with locking means, a first handle assembly, and a second handle assembly. The first and second handle assemblies house spring-loaded tools within. The at least one interchangeable tool head comprises spring-loaded trauma shears, a bridging head, channel-lock pliers, traditional pliers, an adjustable wrench, needle-nose pliers, a ratchet, and tin snips. A carrying case carries the head assembly having at least one interchangeable tool head with locking means, the first handle assembly, and the second handle assembly. The carrying case comprises a first compartment having a locking mechanism. At least a second compartment mounts upon the first compartment to house the at least one interchangeable tool head.

Abstract: A wrench assembled structure comprises a wrench head including an inserting portion, and the inserting portion including a neck portion connected with a crank, the crank including a head end mounted on a top end thereof, a gap of the head end including a hexagonal recess disposed on a rear end thereof, and the recess including a U-shaped retaining side arranged on an upper section thereof; a handle including a shank inserted to a shaft member, having a groove formed on a top end of the shank, and having an inner wall which includes a resilient piece fixed therein, and including a ball and a locking peg retained therein, the shaft member including an engaging section and a chamfer section formed therein.

Abstract: A low clearance drive system includes a low clearance socket and/or a low clearance male driver (50). The socket has a reduced depth drive receptacle and a reduced-depth output fastener receiving receptacle. Each of the male driver and the socket drive receptacle has an axial length (L3) or depth which is less than its nominal transverse width (w). The male driver may have a detent ball (55) adapted to be engaged in a detent recess in the female drive receptacle, such that the ball diameter is less than half the nominal transverse drive width and may be either equal to or less than the diameter of the detent recess.

Abstract: To provide a socket wrench in which an assembling hole formed in a socket body can be brought into stable engagement with a drive disposed at an operating handle without rattling, and facilitating a smooth engaging operation of the socket body with respect to a polygonal head part of a bolt to be operated. A supporting hole 4 is formed in a drive 2 provided at an operating handle 1, and a steel ball 6 pressed by a coiled spring 5 is movably engaged with the supporting hole 4. A recess part 9 for allowing the steel ball 6 to partly engage therein is formed in an inner wall of an assembling hole 7 of a wrench body 3 for allowing the drive 2 to engage therein. A connecting hole 8 engageable with a polygonal head part b? of a bolt b to be operated is formed in the wrench body 3 in such a manner as to be coaxial with the drive 2. The recess part 9 has a pair of contacting walls 9a, 9b for the steel ball 6 to contact therewith, the pair of contacting walls 9a, 9b being disposed in mutually intersecting directions.

Abstract: A ratchet wrench includes a working head located forwardly on a handle. The working head has a body portion with a generally flat and generally uninterrupted upper surface and a cavity formed in an opposite lower surface with at least one actuator bore through the side wall of the body portion. A drive item is rotatably disposed in the cavity. A pawl item is disposed in the cavity to switch the drive direction of the drive item, and a pawl actuator pin is movably disposed in the actuator bore to switch the pawl. A retention plate may be used to mount the drive item and pawl item in the cavity plate. A quick release mechanism may include a longitudinally oriented and longitudinally slideable release actuator. The upper surface of the working head may be formed by the body portion or by a cover plate mounted thereto.

Abstract: A driving tool assembly includes a drive component adapted to be connected to a power tool or hand tool. A driven component is pivotally connected to the drive component and is adapted to receive a tool bit, drill bit, or otherwise provide a nut driver or socket wrench. A locking mechanism is provided for lockingly engaging the driven component to be in co-axial alignment with the drive component. The drive component includes a shaft or a mandrel having a driving shank formed or provided on one end thereof. The driving shank has a non-circular cross-section formed or defined by three or more curved and planar sidewalls. The number of sidewalls preferably includes three, four or six sidewalls, for engaging with a non-circular cavity of the driven component.

Abstract: An extension rod includes a body having an axial passage and a restriction hole and a positioning hole are respectively defined radially in the body and communicate with the axial passage. A shaft of a control member is rotatably inserted into the positioning hole and includes a recess defined in radially which is located within the axial passage. An operation rod is axially movably inserted into the axial passage and a spring is biased between the operation rod and an end piece which seals the axial passage. The operation rod is engaged with the recess and includes first and second dents in different depths. When rotating the shaft, the first and second dents are movable to receive a bead in the restriction hole such that the bead is control to protrude out from the restriction hole to position or release a socket mounted to the body.

Abstract: A tool includes a driving member with a protrusion. A shaft is removably connectable to the protrusion. The shaft includes a bit driving segment for retention of a bit therein. A handle includes a first handle portion and a second handle portion, both of which are pivotally connected to the driving member such that the first and second handle portions at least partially encompass the shaft when in a closed position. A bit retention member is disposed in at least one of the handle portions to retain the bit therein. The bit is insertable into the bit driving segment. At least one notch is fashioned into at least one of the handle portions. The notch is in register with the at least one bit retention member, permitting a user to access the at least one bit retained therein.

Abstract: A driving tool includes a shank, a sleeve, and a return spring disposed therebetween. The shank has a ball recess with a ball received therein. The shank has an interior interface adapted for receiving a tool bit. The ball recess substantially extends into the interior interface. The sleeve mounts on the shank to slide between limits. The sleeve has a first interior ball release recess followed by an interior ball lock surface and then a second interior ball release recess. The release recesses and surface are oriented with respect to the ball recess so as to permit selective displacement of the same over the ball recess to unlock the ball with movement in either direction. A return spring is disposed between the shank and the sleeve. The spring has a first and second end.

Abstract: An extension shaft for holding a tool for rotary motion of the tool includes a first end adapted to cooperate with a chuck of a handheld instrument and a second end including a tool holder for holding the tool for rotary driven motion thereof. The tool holder includes a base portion operatively connected to the extension shaft and a swivel portion capable of holding the tool. The swivel portion is pivotly coupled to the base portion through a pivot assembly, wherein the tool is capable of being rotated about an angle with respect to an axis of the chuck through rotation of the extension shaft in response to rotation of the chuck.

Abstract: A two-section tool joint comprises a first rod, an engaging element, a second rod and a limiting element. The two-section tool joint utilizes an elastic engaging structure to obtain an engaging effect during a multi-angle screwing/unscrewing operation, meanwhile, the tool joint can be fixed stably, avoiding the retraction of the tool joint and reducing the difficultly and inconvenience of the screwing/unscrewing operation.

Abstract: A socket apparatus includes a socket, at least one detent and an elastic element. The socket includes a bit-receiving recess in an end, a mandrel-receiving recess in an opposite end, at least one vent in communication with the mandrel-receiving recess and at least one aperture in communication with the mandrel-receiving recess. The detent is inserted in the aperture so that the detent includes a portion disposed in the mandrel-receiving recess. The elastic element is used to bias and keep the detent in the aperture.

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 tool combination includes a shaft having a non-circular segment, a tool carrying head having a stud pivotally mounted to the shaft, and a sleeve slidably engaging onto the shaft and having a compartment formed in one end for receiving the end portion of the shaft and the stud of the tool carrying head and for retaining the stud of the tool carrying head in line with the shaft, and one end of the shaft is engageable with a power driving tool for being driven by the power driving tool automatically, and the non-circular segment of the shaft is engageable with a non-circular space of the sleeve for allowing the shaft to be selectively rotated by the sleeve manually.

Abstract: A connecting rod assembly comprises a connecting element, a pivot element, a connecting rod, a spring and an engaging element. The connecting element is provided at both ends thereof with a connecting portion and a driving portion. The pivot element is provided at a first end thereof with a connecting pillar formed with a pivot hole, and the connecting pillar is further formed in an outer surface thereof with a moving hole in communication with the pivot hole. The connecting rod has a first end thereof connected to the connecting element, and a second end of the connecting rod is pivotally disposed in the pivot hole. The connecting rod is formed with an evasion groove for cooperating with the engaging element. The spring is disposed in the driving groove with both ends thereof pushed against an inner surface of the driving groove and the connecting element.