Abstract: A ratchet wrench includes a body, a driving head, a control member and a resilient member. The body includes a handle and a Y-shaped extension. The driving head is pivotably connected to the Y-shaped extension by two pivots and an inner groove and a recess are respectively defined in the inside of the Y-shaped extension. The inner groove accommodates the C-shaped plate of the control member and the resilient member is received in the recess. The C-shaped plate has engaging teeth defined in distal ends thereof and the pivots each have ratchet teeth which are engaged with the engaging teeth by moving the control member so as to control the rotation of the driving head relative to the body.

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: Exemplary embodiments are directed to locking mechanisms situated within a cavity of a device defined by side walls located opposite and facing each other that generally include a linear slide fixed to at least one of the side walls. The exemplary locking mechanisms generally include a linear lock configured and dimensioned to at least partially receive and surround the linear slide within a linear lock core. The exemplary locking mechanisms generally further include at least one tool element. Exemplary embodiments are further directed to tool devices situated within a holding means that generally include first and second tool elements. The first and second tool elements are generally positioned in an adjacent arrangement and the first and second proximal end widths are generally dimensionally dissimilar. A dimensional relationship generally exists between the first and second proximal end widths and the first and second distal end widths.

Abstract: A tool includes first, second and third rods which are pivotably and pivotably connected to each other. The first rod is pivotably connected between the second and third rods. Control members, resilient members and contacting members are located at the pivotal portions so as to control the first rod to be pivotable or positioned relative to the second and third rods.

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 an internally serrated cavity section and a non-serrated cavity section. An adjustable geometric connector 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 connector into the internally serrated cavity section. The exchangeable tool link has a proximal end removably joined to the geometric connector of the extension link, and a fastener-engaging distal end adapted for engaging a threaded fastener.

Abstract: An embodiment of a hand tool comprising: a fixed hand tool, such as a hammer or a crowbar, with respect to a handle; a pivoting mechanism; and a claw being coupled to a handle via the pivoting mechanism is described. In another embodiment, the hand tool comprises a fixed tool with respect to a handle, such as a hammer or a crowbar; a coupling mechanism; a claw being coupled to a handle via the coupling mechanism; the coupling mechanism further comprising a splined pin assembly adapted to couple the claw and a handle so as to permit the claw to pivot with respect to the handle, is described. Various pivoting mechanisms including splined pin assemblies and locking pin mechanisms are described.

Abstract: A pivot head wrench includes a handle, a switch, a pusher, a position-retaining device including a resilient member, a pawl, and a driving head. The pivot head wrench is switchable between lock and unlock modes. In the lock mode, the switch is rotated to a first position, and the pusher is abutted against the pawl, and the driving head is adapted to be pivoted at various positions, and the pawl is temporarily disengaged from the driving head when the driving head is pivoted from one position to another and engagement therebetween is resumed by the resilient member thereafter. In the unlock mode, the switch is rotated to a second position, and the switch is abutted against the pawl such that the pawl is restrained from movement and from disengagement from the driving head, and the driving head is restrained and securely held in place at a selected position.

Abstract: A tool includes a handle including a pivotal end, a holding end held by the user in use of the tool and a plurality of teeth formed on an outer periphery of the pivotal end. A first working head includes a pivotal end coupled to the pivotal end of the handle pivotally, a working end engaged with a work piece desired to be driven and an aperture between the pivotal end of the first working head and the working end. A positioning unit includes a positioning plate and an elastic element received in the aperture, with the positioning plate hooking the first working head and pressing the elastic element of the positioning unit respectively. A restricted portion protrudes from the positioning plate between two ends of the positioning plate toward the pivotal end of the handle.

Abstract: A hand tool includes a handle, a shank pivotally connected to the handle, and a locking unit operable for retaining the shank in a selected one of first and second angles relative to the handle. The first angle is about 175° to 185°, wherein the second angle is about 115° to 145°.

Abstract: An angle adjustable handle includes a first shank and a second shank coupled with each other by means of a plug extending in a swivel axis from the first shank and a socket fastened to the second shank. The socket has two body halves tightened to each other and having two socket ends that cooperatively define a socket cavity for accommodating the plug so as to permit the socket to be swivelable about the swivel axis between normal and angle-adjusted positions. A spring-loaded latch is disposed in the first shank and movable to engage or disengage from the socket to permit or prevent movement of the socket.

Abstract: A tool includes a head member and two pivotably connected rods. The head member has a passage defined transversely therethrough and the rods extends through the passage. A driving head is connected to the head member. When the pivotal portions of the two rods are located within the passage, the two rods form a straight and solid bar. When the pivotal portions of the two rods are located outside of the passage, the two rods are pivotable relative to each other so as to be used in different situations.

Abstract: A wrench includes a handle, a yoke, a shaft, a head, a mandrel, a first transmitting unit and a second transmitting unit. The shaft includes a first section securely connected to the handle and a second section rotationally inserted in the yoke. The head is pivotally connected to the yoke. The mandrel is inserted through the head. The first transmitting unit can be used to transmit a small torque to the mandrel from the handle spun relative to the yoke. The second transmitting unit can be used together with the first transmitting unit to transmit a large torque to the mandrel from the handle pivoted together with the yoke.

Abstract: An operating tool able to be rotated for angles includes a handle, a driving head and a quick-disengaging unit. The quick-disengaging unit is provided with a fixing member pivotally assembled with the handle, and the fixing member has one end secured with the driving head and another end provided with a position-limiting member to have the handle restrictedly positioned with the fixing member. The quick-disengaging unit also has an operating member, which is to slide in the fixing member, and a restraining element connected with the operating member and stuck between the fixing member and the handle. The operating member can be operated to move the restraining element off the handle so that the driving head, with the fixing member acting as a pivot, can be rotated relative to the handle for quickly screwing or unscrewing a thread locking member.

Abstract: A rebar bending device for bending rebar. The device features a base plate and a rotator plate pivotally attached to the top of the base plate. A top plate is attached atop the rotator plate. A first pin extends from the base plate through the rotator plate and through the top plate. The rotator plate can rotate about the first pin with respect to the base plate and top plate. An arc-shaped slots are disposed in the top plate, which is adapted to receive a dial pin that is anchored to the rotator plate. A dial is marked atop the top plate (the second marker plate). A second pin is disposed on the top of the top plate near the first pin and a third pin is disposed on the top of the rotator plate.

Abstract: A multi-function socket wrench includes a driving head, a handle, a pivot rod, a first elastic limit unit and a second elastic limit unit. The driving head is pivotally connected with the pivot rod. The driving head can be slidably moved on the handle through the pivot rod and the first elastic limit unit. The driving head and the handle are secured through the second elastic limit unit. The handle and the driving head of the multi-function socket wrench can be turned free as the demand of the user to be a T-shaped socket wrench or operated horizontally.

Abstract: A foldable hand tool has a handle and a tool's driving head. The tool is mainly characterized by that, the handle is provided with a driving head guide groove, which is extended along the handle and set correspondingly with the handle's long guide hole. The driving head guide groove penetrates one side of the handle. A combined lug is protruded from the assembly end of the tool's driving head, and fitted slidably with the driving head guide groove of the handle. When the tool's driving head swings perpendicular to the handle, it can slide along the driving head guide groove. With the arrangement of said driving head guide groove, the hand tool can be configured into a straight or T-shaped pattern, thus improving the ease-of-operation and flexibility to meet the customer demands with higher applicability.

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 hand tool includes a tool head and a handle connected to the tool head. The tool head is adapted to drive a fastening member. The handle includes an external tube adapted to be held by a user, and an internal rod inserted into the external tube. One end of the internal rod is connected to the tool head. The external tube can be selectively moved relative to the internal rod between a first position and a second position. While in the first position, the external tube is securely engaged with the internal rod. While in the second position, the external tube is rotatable relative to the internal rod so that the user can regulate the external tube of the handle in the first position or the second position upon demands, thereby obtaining comfortable and power-saving operation.

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 ended, adjustable, ratcheting wrench comprising an extendable handle, a fixed upper jaw attached to the handle and a moveable lower jaw containing a sliding protrusion. One of the upper jaws and the lower jaw has a generally V-shaped recess. The other of the upper or lower jaws contains the sliding protrusion aligned with a center line of the V-shaped recess.

Abstract: A hinge assembly includes a hinge and a detent cover. The hinge pivotally connects a first acting member to a second acting member. The detent cover can cover the hinge to stop the rotational motion between the first acting member and the second acting member.

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: According to the present invention, the main purpose is to provide a tool head positioning structure for a flexible wrench, which includes a handle and a tool head pivotally connected to the handle. The handle includes a controller associated with a retaining member disposed between the controller and the tool head, and the retaining member can be controlled to approach or away from the tool head by rotating the controller. The controller has two continued surfaces, which are pushing portion and retracting portion respectively, and each surface has a depth different from each other. The handle further includes a resilient device engaged to the controller so as to keep in a required position. A user can rotate the controller to make the pushing portion or the retracting portion be aligned with the retaining member so as to fix or adjust an angle of the tool head.

Abstract: A wrench for different-sized nuts includes a handle having an opening at a first end thereof and a slot communicated with the opening, an adjustment screw threadedly inserted into the handle and passing through the slot for adjusting a gap of the slot, a first working head rotatably connected with the first end of the handle in such a way that one of first and second mounting portions of the first working head is selectively positionable in the opening of the first end of the handle, and different-sized first and second ratchet sockets rotatably and respectively mounted with the first and second mounting portions. By means of the adjustment screw, the rotationability of the first working head relative to the first end of the handle can be adjusted.

Abstract: A multi-function socket wrench includes a driving head, a handle, a pivot rod, a first elastic limit unit and a second elastic limit unit. The driving head is pivotally connected with the pivot rod. The driving head can be slidably moved on the handle through the pivot rod and the first elastic limit unit. The driving head and the handle are secured through the second elastic limit unit. The handle and the driving head of the multi-function socket wrench can be turned free as the demand of the user to be a T-shaped socket wrench or operated horizontally.

Abstract: A pivot head wrench includes a handle, a switch, a pusher, a position-retaining device including a resilient member, a pawl, and a driving head. The pivot head wrench is switchable between lock and unlock modes. In the lock mode, the switch is rotated to a first position, and the pusher is abutted against the pawl, and the driving head is adapted to be pivoted at various positions, and the pawl is temporarily disengaged from the driving head when the driving head is pivoted from one position to another and engagement therebetween is resumed by the resilient member thereafter. In the unlock mode, the switch is rotated to a second position, and the switch is abutted against the pawl such that the pawl is restrained from movement and from disengagement from the driving head, and the driving head is restrained and securely held in place at a selected position.

Abstract: A wrench having a main body defines a first end, an opposite second end, and an axis extending therebetween. A handle body defines a first end, an opposite second end, and an axis extending therebetween, wherein the handle body first end is pivotally coupled to the main body second end. A handle is axially fixed and rotatably coupled to the handle body second end. A tang, having a first end configured to releasably receive a tool, an opposite second end, and an axis extending therebetween, is pivotally coupled to the main body first end. A detent is received in a recesses defined in one of the handle body first end and the main body second end.

Abstract: A hand tool includes a tool head with an insertion hingedly connected to a pair of lugs of a handle to be rotatable relative thereto, and retained to an angular position by means of a spring-biased ball. The insertion is configured to have a hemispherical segment which includes front and rear segment strips extending circumferentially from an apical area that has a retaining concavity. Each segment strips has a plurality of circumferentially extending retaining grooves. The hemispherical segment further includes left and right cutout surfaces parallel and opposite to each other. By virtue of the hemispherical segment, rotation of the tool head relative to the handle and engagement of the ball in a selected one of the grooves and concavity are smooth and successful.

Abstract: A hand tool includes a handle, a shank pivotally connected to the handle, and a locking unit operable for retaining the shank in a selected one of first and second angles relative to the handle. The first angle is about 175° to 185°, wherein the second angle is about 115° to 145°.

Abstract: A socket wrench device having multiple adjustable fastener engagement tool ends. A pair of ratchet engagement heads are pivotally secured in respective rotational and supportive orientation with extending handles pivoted together at their free ends to afford multiple socket engagement orientation by compound pivot and socket rotation within a single hand tool configuration.

Abstract: A wrench includes a driving head, an axle hole formed at an end of the driving head, an accommodating portion disposed in the axle hole for accommodating pawls, a control ring contained in the axle hole and having an end extended out of the axle hole and coupled to a wrench handle, and a ratchet section and a smooth section defined on an external periphery of the control ring, and the ratchet section is provided for latching the pawls to define a fixed state of latching the wrench handle with the driving head and can be rotated into a secured status, and the smooth section is provided for pushing the pawls to release the fixed state of latching the control ring, so as to allow the wrench handle to be turned with respect to the driving head for a quick rotation.

Abstract: A ratcheting wrench having ratchet structure, a ratchet body, a socket wheel, a plurality of ratchet teeth and at least one pawl. The ratchet body is received into the ratchet structure and is rotatable about a first axis. The socket wheel is received in an aperture in the ratchet body and includes a plurality of tool members that are spaced circumferentially apart from one another about a second axis that intersects the first axis but is not coincident with the first axis. The ratchet teeth and the at least one pawl cooperate to control relative rotation between the ratchet structure and the ratchet body about the first axis.

Abstract: An angle adjustable handle includes a first shank and a second shank coupled with each other by means of a plug extending in a swivel axis from the first shank and a socket fastened to the second shank. The socket has two body halves tightened to each other and having two socket ends that cooperatively define a socket cavity for accommodating the plug so as to permit the socket to be swivelable about the swivel axis between normal and angle-adjusted positions. A spring-loaded latch is disposed in the first shank and movable to engage or disengage from the socket to permit or prevent movement of the socket.

Abstract: A wrench having a main body defines a first end, an opposite second end, and an axis extending therebetween. A handle body defines a first end, an opposite second end, and an axis extending therebetween, wherein the handle body first end is pivotally coupled to the main body second end. A handle is axially fixed and rotatably coupled to the handle body second end. A tang, having a first end configured to releasably receive a tool, an opposite second end, and an axis extending therebetween, is pivotally coupled to the main body first end. A detent is received in a recesses defined in one of the handle body first end and the main body second end.

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 tool comprises a handle including a pivotal end, a holding end held by user in use of the tool and a plurality of teeth formed on an outer periphery of the pivotal end; a first working head including a pivotal end coupled to the pivotal end pivotally, a working end engaged with a work piece desired to be driven and an aperture between the pivotal end and the working end; and a positioning unit including a positioning plate and an elastic element received in the aperture, with the positioning plate hooking the first working head and pressing the elastic element of the positioning unit respectively, with a restricted portion protruding from of the positioning plate between two ends of the positioning plate toward the pivotal end

Abstract: A hand tool includes a tool head and a handle connected to the tool head. The tool head is adapted to drive a fastening member. The handle includes an external tube adapted to be held by a user, and an internal rod inserted into the external tube. One end of the internal rod is connected to the tool head. The external tube can be selectively moved relative to the internal rod between a first position and a second position. While in the first position, the external tube is securely engaged with the internal rod. While in the second position, the external tube is rotatable relative to the internal rod so that the user can regulate the external tube of the handle in the first position or the second position upon demands, thereby obtaining comfortable and power-saving operation.

Abstract: A hinge assembly includes a hinge and a detent cover. The hinge pivotally connects a first acting member to a second acting member. The detent cover can cover the hinge to stop the rotational motion between the first acting member and the second acting member.

Abstract: A wrench head having a jaw with jaw members having interior side faces and throat support surfaces defining an interior for mateably receiving a nut or bolt head. Extending from the top side of each jaw member and the top side of a handle connection portion and overhanging the interior defined by the interior side faces of the jaw members and throat support surfaces is a wrench head overhang, that, when placed over a nut or bolt head, is in contact with the top side of the bolt head or top side of the nut. The wrench head overhang serves to retain the wrench head over the nut or bolt head so that the wrench head cannot slip down off of the nut or bolt head. The overhang is dimensioned so as to that when the wrench of the present invention is used to rotate a nut that has been threaded on a bolt shaft, the bolt shaft will clear the sides of the overhang.

Abstract: A socket wrench includes a handle having a bifurcated head including a blind hole spaced from bottom and a channel having both ends communicating with the blind hole and a space defined by the head respectively; a spring depressible trigger pin disposed in the blind hole and having a first inclined surface, a second inclined surface, and a straight line joining the first and second inclined surfaces; a lock pin slidably disposed in the channel and having a first garbled member at one end, the first garbled member including a tip edge, and a second garbled member at the other end, the second garbled member having a tip edge urged against the second inclined surface; and a socket having a projection pivotably disposed in the handle head, the projection including an arcuate toothed section being in gear engagement with the tip edge of the first garbled member.

Abstract: A wrench with a rotatable head comprises a handle and a head, which are connected via a first and a second ends. The first end includes an upper and a lower lugs. A first toothed hole is formed in the upper lug; a hole is formed in the lower lug. A second toothed hole is formed in the second end. The second end is inserted between the upper and lower lugs and the second toothed hole is located between the first toothed hole and the hole. A toothed pillar is movably engaged in the toothed holes. When in the engagement position, the toothed pillar is engaged with the first and second toothed holes to fix the head and the handle. When in the disengagement position, the toothed pillar is disengaged from the teeth of the first toothed hole but still engaged with the teeth of the second toothed hole, so that the head and handle are rotatable with respect to each other.

Abstract: A tool includes a shank. A driving device is mounted on the first end of the shank and has a first ratcheting mechanism including a compartment and a plurality of first teeth in the compartment and a second ratcheting mechanism rotatably received in the compartment and including a plurality of second teeth engaged with the plurality of first teeth. The first ratcheting mechanism is rotatable relative to the second ratcheting mechanism in a single direction. The second ratcheting mechanism also includes a channel extending therein. A driving head is moveably received in the channel between two releasably fixed positions. In one position, the driving head is adapted to turn an element in a first direction. In another position, the driving head is adapted to turn the element in the second position opposite to the first position.

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: According to the present invention, the main purpose is to provide a tool head positioning structure for a flexible wrench, which includes a handle and a tool head pivotally connected to the handle. The handle includes a controller associated with a retaining member disposed between the controller and the tool head, and the retaining member can be controlled to approach or away from the tool head by rotating the controller. The controller has two continued surfaces, which are pushing portion and retracting portion respectively, and each surface has a depth different from each other. The handle further includes a resilient device engaged to the controller so as to keep in a required position. A user can rotate the controller to make the pushing portion or the retracting portion be aligned with the retaining member so as to fix or adjust an angle of the tool head.

Abstract: A rotary wrench includes a handle having a clamping portion with two arms. Each arm includes a holding portion having a hole. At least one of the holding portions includes a positioning section. Two axles are respectively formed on two sides of a head and rotatably engaged in the holes. At least one of the sides of the head includes a positioning portion releasably engagable with the positioning section so that the head is rotatable relative to the handle about an axis and positionable relative to the axis in one of a plurality of angular positions surrounding the axis. An adjusting member is mounted to the arms and operable to adjust the spacing between the arms to move the arms between a clamping position clamping the head and a releasing position not clamping the head.

Abstract: A multi-angle hand tool for a handle includes a shank including a body, and a compartment defined in the body. An operating device includes a connecting end having an engaging portion defined thereon. A guide is mounted in the compartment and includes an embedding portion defined thereon. A connecting device is disposed and interconnected between the operating device and the guide. The multi-angle hand tool has a plurality of operation modes and in each operation mode the operating device is prevented from moving and pivoting with respect to the shank by engaging the engaging portion with the embedding portion. Furthermore, a longitudinal length of the operating device is perpendicular to, or angled to non-perpendicularly, or aligned with the longitudinal length of the body of the shank selectively for different operation modes.

Abstract: A crankable hand wrench includes an elongated main handle having opposite end portions, opposite faces extending between the opposite end portions, and a slot in the main handle nearer to one than the other of the opposite end portions, a wrench head attached to and extending from at least the other of the opposite end portions of the main handle, and a crank assembly incorporated by the main handle. The slot is formed through the main handle between the opposite faces thereof so as to open at the opposite faces. The crank assembly includes a crank handle movable between a stored position in which the crank handle is disposed within the slot and a deployed position in which the crank handle extends from the main handle so as to form a substantially L-shaped crank therewith.

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: A ratchet wrench includes a handle pivotally coupled to a head, a shaft rotatably attached to the head and having a gear and a bevel gear, two pawls engaged in the head for engaging with the gear and for determining the driving direction of the shaft by the head and the handle, an actuating member for selectively disengaging either of the pawls from the gear, a cartridge attached to the shaft, and a driving member rotatably attached to the cartridge and having another bevel gear engaged with the bevel gear of the shaft for allowing the driving member to be rotated by the shaft and the bevel gears and for allowing the pivot head ratchet wrench to be easily used to drive or unthread the fasteners located at a higher position.

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.