Abstract: A gripping sleeve is provided, including: a first sleeve, being substantially tubular and having at least one through hole; at least one restricting member, received in the through hole; a second sleeve, sleeved on the first sleeve and being movable relative to the first sleeve, the restricting member being abutted by the second sleeve and being controllably engaged within an annular groove of a body portion of a main body; an elastic member, disposed around the first sleeve and abutting against the first and second sleeves; a restricting mechanism, arranged on at least one of the first and second sleeves and located between the first sleeve and an outer circumferential face of the second sleeve. A hand tool is further provided, including the main body and the gripping sleeve.

Abstract: A retaining device to secure a socket to an anvil using provided socket holes and anvil hole, including an O-ring and an integral projecting member extending inwardly from the O-ring, the projecting member having a cross-sectional diameter that conforms with the diameter of the holes in the socket and anvil. The O-ring, though integrally formed with the projecting member, is formed at a reduced cross-sectional diameter so that the overall retaining device can be stretched onto a wider range of socket sizes. The preferred projecting member includes a full-length crush gauge that is positioned in at least one of the juxtapositions between the socket holes and the anvil hole.

Abstract: The torque enhancing apparatus including a first socket and a second socket coupled to the first socket, including an extendable moment arm. The torque enhancing apparatus includes a ball pivotably and captively held between the first socket and the second socket. The torque enhancing apparatus may include one or more extendable moment arms. The extendable moment arm or arms are configured such that they provide a mechanical advantage for moving the first socket and the second socket relative to one another. The torque enhancing apparatus may include a first socket, a second socket coupled to the first socket including four extendable moment arms. The torque enhancing apparatus including a ball pivotably held between the first socket and the second socket.

Abstract: A high-current cable connector comprises two metal parts and a interlocking member. The interlocking member moves the metal parts outward so that two abutting surfaces per metal part are pressed together. The alignment of the abutting surfaces causes two other surfaces per metal part, the contact surfaces, to also be pressed together and the cable connector is locked. This results in an easy-to-assemble cable connector with low contact resistance and high thermal capacity.

Abstract: In one embodiment, the present disclosure relates to a system that includes a plate holder and an awl. The plate holder has a first end and a second end with an engagement feature at the second end that is engageable with a bone plate. The awl is releasably engaged to the plate holder and includes a locking mechanism adjustable from a first setting to a second setting and a tip. When the locking mechanism is in the first setting, the awl is fixed relative to the plate holder and the tip is disposed within the plate holder. When the locking mechanism is in the second setting, the awl is axially translatable relative to the plate holder such that the tip of the awl extends out of the second end of the plate holder.

Abstract: A multi-function marine tool includes a shaft extending along a shaft axis between first and second shaft ends, and a T-handle connected to the second shaft end and extending along a handle axis between first and second handle end faces. Opposite handle lateral side faces and handle top and bottom side faces extend between the first and second handle end faces along the handle axis. A first wrench head is formed as a socket recessed into a shaft end face at the first shaft end, and second, third and fourth wrench heads, of different sizes, are each formed as a pair of protrusions extending outwardly from the first handle end face, second handle end face, and one of the handle lateral side faces, respectively. Additional accessories, including a bottle opener, corkscrew and cork puller and line cutter can be incorporated into the T-handle without increasing the dimensions thereof.

Abstract: A wrench includes a main body, a mounting member, a push rod, two push blocks, a first elastic member, a handle, and a drive mechanism. The main body has a support arm, two pivoting portions, a rotation passage, a first receiving hole, a first receiving slot, two second receiving slots, a second receiving hole, and a shank. The push rod has a positioning element. Each of the push blocks has a first received portion, a second received portion, a third mounting portion, a first locking section, a second locking section, a first locking groove, and a second locking groove. The drive mechanism has a driving head, a control rod, and a second elastic member. The driving head has two fitting portions, a third receiving hole, multiple first positioning portions, and an operation end. The control rod has a second positioning portion and a stepped portion.

Abstract: An anvil receives less stress around a rectangular prism and has higher durability. An impact wrench includes a motor, a hammer rotatable by the motor, a body accommodating the motor and the hammer, and an anvil protruding frontward from the body and to be struck in a rotation direction by the hammer. The anvil includes a blade to be in contact with the hammer, a cylinder located frontward from the blade, a rectangular prism located frontward from the cylinder, at least one chamfered surface each at an edge of the rectangular prism, and a concave on a rear end of the at least one chamfered surface.

Abstract: A tool with a handle indexably retained to a pin. The pin is coupled to a head of the tool. The pin allows an angle between the head and the handle to be adjusted, thereby allowing the tool to be used in hard to reach places. The pin is coupled to the head to limit axial movement without the need of a threaded fastener. The reduction of axial movement allows for smooth, consistent operation of the tool.

Abstract: An anti-rolling socket includes a socket body, a groove, a through hole, and a stopper. The socket body has an inner peripheral surface and an outer peripheral surface. The groove is disposed in, and along the circumference of, the inner peripheral surface. The through hole is disposed between the inner peripheral surface and the outer peripheral surface and communicates with the groove. The stopper includes a stop ring and a stop section. The stop ring is fitted in the groove. The stop section is connected to the stop ring. The stop section projects from the through hole and protrudes from the outer peripheral surface. The stop section can abut against a flat surface to prevent the socket body from rolling on the flat surface.

Abstract: A socket holder with a built in locking mechanism that is user controlled and activated by a push button which controls internal locking mechanisms which allow this socket holder to securely store and transport sockets mounted to a main socket holder body. This socket holder can hold multiples of sockets to the main socket holder body, releasing them only when desired by the user with the push of the push button that controls the internal mechanisms which release the sockets from the main socket holder body. This socket holder is designed to organize and securely lock the sockets onto the main socket holder body in a way that is dependable and easy to use.

Abstract: A tool joint is provided, including a main body, a swingable member and a locking structure. The main body has a connecting channel. The swingable member is disposed on the main body. A driving rod is disposed through the swingable member and movable between a first position and a second position. When the driving rod is in the first position, the driving rod is out of the connecting channel, the swingable member is swingable relative to the main body. When the driving rod is in the second position, the driving rod projects within the connecting channel and the swingable member is non-swingable relative to the main body.

Abstract: A tool is devised for skateboards. The tool includes a grip, an Allen key/screwdriver, a driver and three sockets. The grip includes a non-circular cavity in an end and a groove in a side. The first and second sockets are connected to the grip, opposite to each other. The Allen key/screwdriver is selectively inserted in the groove. The driver is selectively inserted in the cavity. The third socket is formed at an end of the driver. The third socket includes an axial bore, a radial bore, and a cutout opposite to the radial bore.

Abstract: A tool assembly includes a housing, a shaft, a spherical member, and a head. The housing defines a shaft channel. The shaft is rotatably disposed within the shaft channel and includes an exposed portion outside of the shaft channel. The exposed portion defines an engagement channel extending through an outer surface of the exposed portion. The spherical member is disposed within the engagement channel. The head is configured to be engaged with the exposed portion of the shaft. The head includes a detent configured to selectively engage the spherical member.

Abstract: A percussive massage device that includes a housing, an electrical source, a motor positioned in the housing, a switch for activating the motor, and a push rod assembly operatively connected to the motor and configured to reciprocate in response to activation of the motor. The housing includes first, second and third handle portions that cooperate to define a handle opening, wherein the first handle portion defines a first axis, the second handle portion defines a second axis and the third handle portion defines a third axis, and wherein the first, second and third axes cooperate to form a triangle.

Abstract: A tool connector is provided, including: a rod, a sliding sleeve, a locking member, a push rod, a sliding rod, a first elastic member and a second elastic member. The sliding sleeve is movably sleeved to the rod. The sliding rod is disposed through the push rod and slidably disposed on the rod. The sliding rod is comovable with the push rod. The first elastic member is elastically abutted against and between the push rod and the rod. The second elastic member is elastically abutted against and between the rod and the sliding sleeve.

Abstract: An orthopaedic driving instrument including a first end portion, a second end portion opposite the first end portion, and a central portion, intermediate the first and second end portions, comprising a central section having an outer diameter representing a maximum outer diameter of the driving instrument. The first end comprises a first driving interface sized and shaped to, in operation of the instrument, engage a screw interface of a screw for applying torque to the screw. The second end comprises a second driving interface sized and shaped as the size and shape of the first driving interface.

Abstract: The present invention relates to a three-piece wrench comprising: a wrench body with a working head and a shaft, the working head is located at a front end of the shaft, the shaft has a length; a first extension rod with a length; and a second extension rod with a length; the lengths of the first extension rod and the second extension rod are greater than the length of the shaft; combination of the wrench body, the first extension rod and the second extension rod provides various usage lengths of the wrench, so that different connection types can be used to form required lengths according to requirements.

Abstract: A rotary fastening device includes a rotating axial member and an inertia member. The rotating axial member includes a base body, an input end, an output end and an engaging portion. The input end is disposed at one end of the base body and selectively connected to a wrench. The output end is disposed at the other end of the base body. The engaging portion is disposed on the base body. The inertia member is detachably connected to the rotating axial member, and includes a gravity portion and an engaging hole. The gravity portion is extended toward the output end of the rotating axial member so as to form an annular space. The engaging hole is communicated to the annular space.

Abstract: A multi-section universal tool includes an assembling member, a connecting member, a working member and two elastic members. The assembling member has an assembling portion and a first receiving room. The connecting member includes a connecting ball joint and a second receiving room. The connecting ball joint includes a connecting elastic abutting member which has a tendency to radially move outwardly. The connecting ball joint is inserted into the first receiving room and movable relative to the first receiving room to be in a first connecting position or a second connecting position. The working member includes a working ball joint including a working elastic abutting member which has a tendency to radially move outwardly. The working ball joint is inserted into the second receiving room and movable relative to the second receiving room to be in a first working position or a second working position.

Abstract: Provided are a quick disconnect tool and a male connector configured for removably mounting a device on a surface. The tool includes a socket, detents in the socket and a collar to open and close the detents. The male connector fits within the socket and cannot rotate within the socket. The male connector has at a first end a recess into which the detents can lock the male connector inside the socket and threads at a second end opposite the first end. Also provided is a method removably mounting a device to a surface using the quick disconnect too and the male connector.

Abstract: A latch and catch arrangement is disclosed, whereby a sleeve supporting a flexible hinge with an extended finger is oriented over a fluid connection to a socket guide. The sleeve is oriented to the tool collar to place a flexible hinge and finger over the bearing guide. The finger moves upward when a tool is inserted into a tool socket, and the flexible hinge, properly oriented by the alignment catch/latch, keeps the finger in the tool socket while allowing necessary movement to insert and remove a tool.

Abstract: A magnetic sleeve includes a body and a magnetic unit disposed in a second section of the body where a locking socket and a mounting hole are formed and communicating with each other. The mounting hole is enclosed by a peripheral wall while taking a reference point as center. The peripheral wall includes at least one engagement surface and at least one curved wall surface. Each engagement surface has two transition points for meeting the wall surface. The formation of one engagement surface or more engagement surfaces not only attains a firm engagement between the magnetic unit and the mounting hole but also forms a space therebetween to discharge air from the mounting hole smoothly, thereby preventing the magnetic unit from being broken during the installation. The space is also minimized to avoid undue accumulation of metal chips and allow the magnetic unit to be held in position stably.

Abstract: A novel drum speed key tool that provides improved balance and efficiency for the installation, tightening, and removal of drum lug nuts. The drum speed key tool provides a finger receiving cup to allow a user to insert a finger or grip with their hand and efficiently apply rotational force to the drum speed key while maintaining attached to the drum lug nut with reduced slippage of the drum speed key tool from both the user's grip and the drum lug nut.

Abstract: An apparatus to lower or raise landing gear on a trailer or semi-truck comprising a tool having a center body with a coupling device and a power coupling that is selectively engageable with a rotatable projection on the landing gear. The power coupling is operatively engaged with a worm gear within the center body and thereby with the coupling device. A powered drill is engaged with the power coupling and is actuated to rotate the power coupling in a first direction or in a second direction. The power coupling rotates the worm gear, which rotates the coupling device and thereby the projection on the landing gear. Rotation of the projection in one direction lowers the landing gear. Rotation of the projection in the opposite direction raises the landing gear. The user selects to raise or lower the landing gear simply by causing the drill chuck to rotate clockwise or counter-clockwise.

Abstract: A long-shaft tool includes a shaft extending along a longitudinal axis and having a handle at a first end of the shaft and a second end opposite the first end with a holder for a manipulator wherein the holder has a protruding latch pin provided for engagement with a recess of a manipulator, which can be moved from the protruding position into a retracted position. The holder has a coupling half for coupling with a coupling half of a manipulator which is rotatable relative to a base body of the shaft.

Abstract: An air hammer is connected to a transfer fixture that has a distal end with a transverse rod. A wrench has an open end with a jaw assembly that has a mouth to receive the transverse rod. The jaw assembly has a swivel tooth that is manually moved from an open position to allow insertion of the transverse rod into the mouth. For a working mode using the air hammer to hit the mouth, the tooth is moved to a locked mode. A ball and spring assembly ensures the transverse rod stays in the mouth during operation.

Abstract: A ratchet wrench includes a hole in which a driving member and a pawl are received. The pawl is engaged with toothed face of the hole of the head. The driving member has a protrusion. An operation rod extends through the driving member and connected with a positioning unit. A bead is movably received in the protrusion of the driving unit and cooperated with an operation rod. When pushing the positioning unit, the operation rod is moved and the bead is submerged in the protrusion to release or to connect with a socket to the protrusion. The pawl includes a slot that extends in the radial direction of the hole in the head. A control member is rotatably engaged with the hole and includes a stud inserted into the slot. A resilient member is located in the slot and biased between the stud and the inner end of the slot.

Abstract: A tool combination includes a body having a left portion, a right portion, a top portion and a bottom portion. The left portion and the right portion are symmetric to each other relative to a vertical plane. The top portion and the bottom portion are symmetric to each other relative to a horizontal plane. The left, right, top and bottom portions respectively includes an identical left, right, top and bottom recess, and an identical left, right, top and bottom spaces. Each of the left, right, top and bottom recesses includes a tool set received therein.

Abstract: A driving tool includes a coupling component defining a compartment and a driving component received by the compartment. The compartment includes a first receiving section and a second receiving section. The driving component includes a first driving body portion, a second driving body portion, and a connecting portion. The connecting portion is inserted through the first receiving section and is fixedly disposed in the second receiving section. The connecting portion and the second receiving section are forced into a tight interference fit with each other. The second driving body portion includes a length inserted and disposed in the first receiving section. The first and second driving body portions are made to have a first hardness, and the connecting portion is made to have a second hardness respectively. The second hardness is less than the first hardness.

Abstract: A ratchet screwdriver may include a handle, a shaft and a ratchet switch device. The handle has a passage axially penetrating through a front end thereof, and a mounting member is mounted on an outer periphery of the front end of the handle. Furthermore, a housing slot formed inside a rear portion of the handle is configured to receive the ratchet switch device. The ratchet switch device comprises a base, a switch button, a driving piece, a positioning member, two engaging blocks, two springs, a ratchet and a locating piece, thereby allowing the shaft to independently rotate relative to the handle in a reversed-working direction. Thus, a user has no need to repeatedly detach the ratchet screwdriver from a screw or re-hold the handle when operating, which is more convenient and labor-saving.

Abstract: A tool including a wrench body having a first drive end at a first end of the wrench body, and an aperture in the first drive end that includes a shoulder or retaining web extending into the aperture. A ratchet gear including a receiving portion adapted to engage a work piece for providing torque to the work piece, and a ring groove is disposed in the aperture with the receiving portion and the ring groove on opposite sides of the shoulder. A retaining ring is disposed in the ring groove and adapted to retain the ratchet gear in the aperture. The retaining ring limits offset loading that may be applied to a cover plate and/or retention screws when the tool is being used.

Abstract: An adjustable universal pipe fastening tool is configured such that mechanical elements, particularly fastening members such as bolts and nuts and pipes, can be easily fastened and unfastened using a single tool, thereby ensuring a convenient use. Particularly, an adjustable universal pipe fastening tool having a spanner portion is provided, which is configured to rotate, and a wrench portion, which is configured to be able to slide. The adjustable universal pipe fastening tool according to the present invention comprises: a body portion, which has a sliding hole formed on a surface thereof; a spanner portion formed on one side of the body portion so as to manage fastening and unfastening of mechanical elements; and a wrench portion formed on the other side of the body portion so as to manage fastening and unfastening of mechanical elements while sliding inside the sliding hole of the body portion.

Abstract: A combination of wrench and driving device includes a wrench, a first driver having an axis and a combining part on one end and a connecting part on the other end thereof, a second driver having a non-circular outer edge, and a retaining mechanism. The wrench has a driving part. The combining part is removably engaged with the driving part, and one end of the combining part away from the connecting part has a retaining edge. The second driver is axially coupled with the connecting part along the axis. The retaining mechanism, when the second driver rotates toward any vertical direction vertical around the axis to be coupled, prevents the profile of the combining part and the profile of the non-circular outer edge from completely axially overlapping each other. The non-circular outer edge is retained against the driving part of the wrench.

Abstract: A socket release assembly for a ratchet drive or ratchet wrench that includes a ratchet gear housing, a ratchet head connected to the ratchet gear housing, a push button disposed within the ratchet gear housing and the ratchet head with a portion extending through an opening in the ratchet gear housing, a channel lock disposed within the ratchet gear housing above the ratchet head, a ball lock disposed within the ratchet head and in mating contact with the push button, a ball bearing disposed within the ratchet head between the ball lock and a ball bearing opening in the ratchet head, a release pin within the ball lock and in mating contact with the channel lock where sliding of the release pin causes the channel lock to be slidably positioned allowing the push button to be depressed into ratchet gear housing.

Abstract: A screw tool having a gear head, which has a freewheel gear, having an output shaft, which is inserted in a non-rotatable but displaceable manner in an output opening and can be moved to and fro between a right-hand screw position and a left-hand screw position in each case by use of axial displacement, wherein in each case a different end section of the output shaft projects out of the gear head, having at least one locking mechanism to secure the position of the output shaft in the respective screw position and/or around a screw output element on the output shaft. As a development which is advantageous for use, the at least one locking mechanism can be moved from a locking position to a release position by pressure on an actuation element arranged on the end face of the output shaft.

Abstract: An insertion tool is used to insert a threaded coil insert into a threaded opening of a support structure. The tool includes a rotatable mandrel body having an axial longitudinal passage and a projection slot. A plunger is disposed in the passage forward of a spring which urges the plunger forward. The plunger in turn urges a drive projection. A front end of the plunger includes an inclined surface that slidingly and inclinedly engages an inclined surface of the drive projection. The urging of the drive projection by the plunger along their respective inclined surfaces causes relative sliding movement of the drive projection so that the drive projection translates linearly through the projection slot in a direction perpendicular to the longitudinal passage.

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: 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: An insert bit includes a connecting component and a driving component. The connecting component includes a connecting end and a receiving end. The receiving end includes first and second receiving sections. The driving component is adapted to be inserted into the connecting component. The driving component includes first and second engaging sections. The first engaging section is tightly fit in the first receiving section such that the first engaging section includes an outer periphery including a flange that is formed after the first engaging section is forced into the first receiving section, and is extended radially outwards to abut against the first receiving section. The second engaging section is fit in the second receiving section. The second engaging section has a shape corresponding to the second receiving section.

Abstract: A tool extension bar includes a rod including first and second ends. The second end is adapted to connect to and be driven by a power tool. A sleeve assembly is slidably mounted around the rod and includes an end adapted for connecting to a tool member. A radial hole extends in a radial direction at an end of the sleeve assembly. An elastic member is mounted around the second end of the rod and is biased against the rod and the sleeve assembly. An engaging member is movably received in the radial hole and is moveably engaged in the recess of the rod. The engaging member releasably engages the sleeve with the rod.

Abstract: A screw tool having a gear head, which has a freewheel gear, having an output shaft, which is inserted in a non-rotatable but displaceable manner in an output opening and can be moved to and fro between a right-hand screw position and a left-hand screw position in each case by use of axial displacement, wherein in each case a different end section of the output shaft projects out of the gear head, having at least one locking mechanism to secure the position of the output shaft in the respective screw position and/or around a screw output element on the output shaft. As a development which is advantageous for use, the at least one locking mechanism can be moved from a locking position to a release position by pressure on an actuation element arranged on the end face of the output shaft.

Abstract: A locking mechanism for use with a tool has a tool having a first working end, an opposite second end, a central axis therebetween, and a least one axial recess formed on an outer surface of the tool. A cap is rotatably received on the tool opposite second end, the cap comprising at least one recess formed on an outer surface thereon. The cap is rotatable between a first position in which the cap at least one recess aligns with the tool at least one recess, and a second position in which the cap at least one recess is out of alignment with the tool at least one recess. The locking mechanism further comprises a detent operatively positioned between the tool and the cap. The detent may be a pin and a spring, where the spring biases the cap into the second position.

Abstract: A cutting tool setting system contains a tool head for the settable holding of a cutting tool, the head having an adjustment device for the cutting tool. The cutting tool setting system has a setting tool which can be mechanically removably engaged in the tool head at an interface for adjusting the adjustment device in the tool head. The setting tool contains a shaft body having a key part. A key engagement for actuating the adjustment device is designed on the tool head. The key part can be displaced relative to the shaft body in the direction of the longitudinal axis of the body in order to selectively couple and release the key part of the setting tool and the key part at the interface of the tool head.

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 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 quick-release bit adapter includes a body having a driving hole extending from a driving section towards a connecting section of the body. The driving section includes a sliding hole extending at a non-parallel angle to and in communication with the driving hole. A resilient positioning member is mounted in the driving section. A releasing device is slideably mounted in the sliding hole. When the releasing device is in a first position, the resilient positioning member is engaged in cuts in an outer periphery of a bit in an engagement position received in the driving hole. When the releasing device is moved to a second position, the bit is disengaged from the resilient positioning member to allow easy removal of the bit.

Abstract: A hand tool includes a shank, a sleeve, a control member, a pressing member, an end piece and a resilient member. The shank has multiple annular grooves. The control member and the resilient member are located in the chamber of the sleeve and the end piece closes the sleeve. The shank extends through the control member and the end piece. When the pressing member is not applied by a force, the sleeve can only rotate relative to the shank and cannot move relative to the shank. When the sleeve is applied by a force, the sleeve can move relative to the shank.

Abstract: A small outer diameter quick release extension rod is provided with elongated sheet-shaped elastic elements therein for realizing the effect of engaging with a screwdriver head. A second positioning ring in the operating element is used to press against the elastic elements to control them to be engaged in or disengaged from the screwdriver head. The small outer diameter quick release extension rod is easy to operate and has a relatively small outer diameter, not only reducing the structure weight and energy loss, but also enhancing the flexibility of use.

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. A guided element is coupled between the engaging element and a biasing element and is arranged to partially overlap the biasing element.