Abstract: A folding tool includes two support plates, a ratchet driver pivotally mounted between the two support plates, a rotation seat rotatably mounted between the two support plates, and a plurality of tips each removably mounted on the rotation seat and each detachably mounted on the ratchet driver. The ratchet driver drives each of the tips to rotate in the operation direction only and idles in the opposite direction so that each of the tips can rotate the screw member in the operation direction successively so as to screw or unscrew the screw member easily and quickly. Thus, when the folding tool is used in a smaller space, each of the tips is driven by the ratchet driver to rotate the screw member in the operation direction successively and to screw or unscrew the screw member easily and quickly.

Abstract: A multi-bit tool comprises a housing having a bit chuck with a bit-receiving opening. A substantially rigid main frame member defines a plurality of longitudinal channels and is disposed within the housing such that each of the plurality of longitudinal channels is generally aligned along the longitudinal axis of the multi-bit tool. A plurality of spring loaded actuator mechanisms are mounted in rigidly retained relation within one channel of the frame member. Each spring loaded actuator mechanism has a carriage member movable between a rearward position and a forward position, and a trigger member movable between a rest position, a forward triggering position and a rearward triggering position. The carriage member is moved to its rearward position by movement of the trigger member to its rearward triggering position and the carriage member is moved to its forward position by movement of the trigger member to its forward triggering position.

Abstract: A screwdriver kit includes a main body which has a first end adapted for connecting to a tool and a second end. A column projects from the second end and has an opening formed therein longitudinally. A linkage has a first end and a second end, with the second end of the linkage slideably received in the opening. A cap member, which has the second end of the linkage installed therein, is movable between a first position and a second position. The cap member is coupled to the main body when the cap member is in the first position. The cap member is detached from the main body along the linkage when the cap member is moved toward the second position.

Abstract: A circular, cylindrically shaped tool handle holds multiple sizes of tools. The handle includes one or more holding slots each positioned on the outer surface into which tools are inserted and held. Each holding slot includes one or more contoured compartments in which tools rest when engaged with the handle. Each contoured compartment is of a size and dimension which corresponds to one or more tool sizes. Each contoured compartment is formed about a corresponding receiving hole. A lock is positioned over the contoured compartment to irremovably confine the short leg of the hexagonal wrench within the contoured compartment. Hexagonal shaped tools other than wrenches are able to be used with the handle of the present invention such as screwdrivers and socket wrenches. A tool container stores the tools and the tool handle.

Abstract: A driving tool including a guide groove shaped as a long hole receives a driver bit such that a portion thereof excluding its support is projectable outside of the handle body. The base material has the outline shape of the supporter of the driver bit and is formed so that it might project to the inner side in the inside wall of the circumference wall by the side of the central part of the guide groove of the top plate of the cap. The locking piece is formed in the inner wall of the open end of the cap so that it can stop the rotation part which can prevent a plurality of driver bits from entering the guide groove of the cap.

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

Abstract: A 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 screwdriver with a dual headed axial shaft allows for easy alternation between two screwdriver heads while maintaining the traditional screwdriver design. An axial shaft member having two screwdriver heads located at opposite distal ends of the axial shaft member is sized to snuggly slide through a longitudinal channel extending between opposite ends of the screwdriver handle. A locking mechanism on the screwdriver handle serves to lock the axial shaft member within the screwdriver handle, thereby safely exposing one of the two screwdriver heads at a time. A user can then release the locking mechanism and slide the axial shaft member within the screwdriver handle, exposing the second screwdriver head at the opposite end of the axial shaft member. The shaft member is then locked into place by the automatically engaging locking mechanism.

Abstract: A retractable screwdriver includes a handle, a positioning member, an operation ring, a shank, a sleeve and a drive socket. The positioning member includes a first opening and a second opening respectively defined through a wall thereof and communicating with the passage. The length of the first opening is shorter than that of the second opening. A first wall is formed at the first opening and a second wall is formed at the second opening. The first and second walls are located on different radial planes and have a distance defined therebetween in a radial direction. The opening ring is obliquely located in the passage and biased by the second spring to keep an inclination of the operation ring. The operation ring has its contact edge to contact the shank so as to achieve the purpose of adjustment of the shank.

Abstract: A multi-function tool includes an extendible and retractable portion that becomes offset from a centerline position of the handle when in the offset position. A locking mechanism allows the workman to offset the shaft from a centerline position of the handle, or retract the shaft back into the handle into a centerline position. While the shaft is in the extended and offset position, the shaft rotates freely in either a clockwise or counterclockwise direction. When the shaft is retracted in the straight centerline position, a ratchet mechanism or gear box restricts shaft rotation in either a clockwise or counterclockwise direction, or allows rotation in either direction. The shaft can be extended and offset by means of a spring or other device that allows the locking mechanism to offset automatically or semi-automatically when the locking mechanism is activated. The shaft allows the workman to interchange bits or sockets for multiple applications.

Abstract: A foldable tool kit has a ratchet head, a wrench body, a bit holder, a plurality of bits and a gripping handle. A protruding column extends from the ratchet head and is jacketed by an extension rod. The wrench body has a U-shaped cross-section, and side walls of one end of the wrench body form securing plates between which the ratchet head is pivoted. The extension rod opens out from, or closes into, a first opening of the wrench body, and tap holes are provided on side walls of another end of the wrench body. One end of the bit holder has a pivot base, and the pivot base has a pair of first pivot portions corresponding to a pivot hole from two sides of the pivot base. The grip handle also has an inverted U-shaped cross-section and two sides of one end each respectively have a through hole.

Abstract: A multi-function tool apparatus and system formed from a handle and a utility blade having a structure that facilitates completion of a plurality of functions, thus, reducing the number of ancillary tools required. The handle may include a butt end with a screwdriver in releasable engagement with the handle. The screwdriver can be removed to expose a shaft and several screwdriver bits. The butt end includes a bolt that can be removed to attach and extension pole to allow the apparatus to reach remote areas. The structure of the utility blade allows functions including but not limited to: scraping; putty spreading; caulk stripping; can opening, can closing; roller wiping; cutting; torquing hex nuts on spray guns; nail pulling, nail driving and the like. In other embodiments, other heads may be substituted for the utility blade.

Abstract: A hexagon spanner handle of the present invention includes a handle whose three edges are inwardly concaved respectively so as to form three shaft-like bodies at three triangle points. The handle has plural hexagonal apertures in different sizes arranged along the three shaft-like bodies. One plane surface of the handle has three position-limiting slots which are respectively located in three shaft-like bodies and outwardly extended along the shaft-like body and are communicating with the hexagonal apertures. The bottom of each position-limiting slot has plural indentations in different widths, and a magnetic body is located at the end of the position-limiting slot. Thereby, each hexagonal aperture can be inserted by the short leg of corresponding hexagon spanner, and the position-limiting slot can receive the long leg of the hexagon spanner with the magnetic body attracts thereof for fixing, so that the handle can be assembled with hexagon spanners in different standards.

Abstract: The hand tool (1) has a body (7), and a chuck (4) with an axial opening (3) on an axis of the tool. A tool element (2) is movable between a retracted position generally within the body, and an extended operative position wherein the tool element extends through the axial opening and chuck, the chuck having a stop (15) for blocking further extension of the tool element once in its operative position. A movable means (16) blocks the tool element against retraction when in the operative position, the movable means being dislodgeable when retraction is desired, to a position where the movable means no longer blocks the tool element against retraction. In the preferred embodiment, the hand tool has multiple tool elements (six for example), spaced around the axis of the tool. Each tool element, when extended, has a proximal end which abuts the distal end (14) of an axial post in the handle of the tool.

Abstract: The present disclosure relates to a hand-held tool that may be held in the palm of a hand, the hand-held tool being of adequate length and size to allow users to comfortably transfer the tool from a palm grip to a pen grip to maintain the use of the fingers and the thumb when the hand tool is stored in the palm. One or several storage housings are attached offset from a drive shaft housing for improved torque transfer from a hand to the tool head, integral storage of work pieces, optimized use of palm torque during use, and better overall grasping. The hand tool is also equipped with a retractable or nonretractable torque drive shaft designed to allow the fingers and thumb of a user to be rotated freely when the tool is in palm grip and capable of transmitting torque through the housing when an axial pressure force is placed along the drive shaft to engage the tool head with the housing. The drive shaft can also be reversed to create a prolongation shaft or placed in another opening of the housing.

Abstract: A screwdriver helper includes a handle, a guide, and a bit. The handle defines a through hole therein. The guide is affixed to the handle. The guide comprises a top surface, a bottom surface, and a through guide hole defined between the top surface and the bottom surface. The top surface is faced to the handle. The guide hole is corresponding to the through hole of the handle. An axis of the guide hole is perpendicular to the bottom surface. The bit is positioned in the guide hole. The bit comprises a tip and a head. The tip is in a shape of a screw head. The head defines slots in a top end thereof. The bit is movable along the axis of the through guide hole. The screwdriver helper helps screwdriver to lock screws firmly.

Abstract: A multiple bit device for an automatic drill or screwdriver includes a plurality of bits of different size and functionality, in one compact unit. The multiple bit unit provides a convenient and handy arrangement of bits which allows the user to easily switch to different bits. Additionally, since all of the bits are in one unit, misplacement is less likely, as is with single bit units. Optionally, at least one extender unit which fits over any one of the bits in the multiple bit unit, and supports an additional bit piece may be included.

Abstract: Retractable chuck for drill bits, screw bits and other tools for any chuck size operated by hand or power source which operates without the user touching the bits to move into operating position.

Abstract: A multi-bit screwdriver comprises a housing with a bit chuck at the front end and bit assemblies retained within the housing. Each bit assembly has a tool bit at a front end and a contact surface at a back end. An actuator extends from each bit assembly for operative engagement by a user, for movement of the actuator and bit assembly between a forwardly extended in-use configuration whereat the bit assembly is positioned such that the tool bit extends outwardly from the housing, and the contact surface of the bit assembly is disposed in longitudinal force transmitting engagement against a forward facing abutment surface to preclude rearward movement of the bit assembly due to substantially longitudinally directed forces transmitted from the tool bit, and a retracted configuration whereat the contact surface of the bit assembly is removed in a lateral direction from the longitudinal force transmitting engagement with the forward facing abutment surface.

Abstract: A folding multipurpose hand tool including a pivoted latch that engages side walls of a handle and a base of a folding tool member to hold the folding tool member in a selected position. A separate safety interlock latch keeps a folding blade stowed in a handle when another tool is moved from a first position with respect to the handle. A tool bit holder securely holds and drives reduced thickness tool bits that can also be engaged in and driven by conventional sockets having a regular hexagonal shape.

Abstract: Apparatus and method for a T-shaped wrench having three drive stems including a base drive stem wherein the top portion of the wrench has opposing ends or drive stems which are 30 degrees offset from each other. The angularly offset drive stems of the top portion allow the wrench to be used in tight areas where other wrenches are not usable.

Abstract: A screwdriver with rotary cartridge including replaceable bits therein comprises a body including a cavity portion formed at one end thereof for receiving a rotary cartridge having grooves therein, the cavity portion including a mounting tube provided at front end thereof and communicating therewith, the grooves rotatably corresponding to the mounting tube, the cavity portion also including a slide seat secured at the rear end thereof and communicating therewith, the slide seat including a grip disposed thereon and having a push shank fixed at the front end thereof, wherein a slidable piece is attached in the cavity portion for being pushed by the push shank and includes a guide slot formed thereon, at one end of the rotary cartridge are extendedly defined with locking protrusions, on a rotating shaft of the rotary cartridge is pivotally secured an actuation member for rotatably retaining the corresponding locking protrusions, the actuation member includes a guiding tab disposed thereon for being fitted in th

Abstract: A multi-bit driver comprises a housing and a plurality of bit assemblies operatively retained within the housing. At least one of the bit assemblies has a base portion and a tool bit member removably and replaceably mountable on the base portion. A bit chuck in the housing is for receiving each tool bit member singularly in torque transmitting relation, and includes a bit-receiving opening for permitting each tool bit member singularly to extend therethrough. The housing includes a substantially transparent forward portion that permits viewing of the tool bit members. An actuator extends from each bit assembly exteriorly to the housing for operative engagement by a user, for co-operative movement of the actuator means and the bit assembly between a retracted configuration, a forwardly extended in-use configuration.

Abstract: The invention include a guide groove of a long hole shape make the part excluding the root part of any one driver bit which was formed in top plate of the cap attached several pieces of the cap engaging rotatably and removably project to the method of outside and lead the driver bit to the support crevice. The base material of the outline shape of the supporter of the driver bit mostly and it was really formed so that it might project to the inner side in the inside wall of the circumference wall by the side of the central part of the guide groove of the top plate of the cap. The locking peace formed in the inner wall of the open end of the cap so that it can stop the rotation part which can prevent that plurality driver bits enter to the guide groove of this cap. And the invention has a few parts, and can set it the state where the driver bit chosen by easy operation can be used, and the storage state easily.

Abstract: A tool has an adjustable bit array of individual bit elements arranged along a longitudinal axis. The bit element to be used is selected by slightly rotating and then sliding an operating rod fixed to a central bit element that has the smallest diameter. Successively larger bit elements are coupled to the central bit element in a cascading relationship. The operating rod is locked selectively in locking slots, each of which is associated with one of the bit elements.

Abstract: The screwdriver has a handle and a rigid shaft that extends from the handle. The shaft has an end for engaging a screw. It also has a bore that extends from the handle to the screw-engaging end of the shaft. A LED is situated in the bore, proximate the screw-engaging end of the shaft. The handle has a recess. A battery is situated within the recess. The LED is electrically connected to battery by a wire extending through the bore, between the LED and the handle. Interchangeable heads are provided for use with screws of various configurations.

Abstract: A socket wrench having multiple driving heads includes a triangular star-shape handle which consists of an upper and a lower shell. The triangular portions of the handle have respectively a protrusive driving portion. Two neighboring driving portions are connected by a side wall formed in an arched shape concaved inwards. Each driving portion holds a driving bar having a coupling head on an outer side and a ratchet on an inner side inside. A clamping box is provided that includes an upper and a lower deck in the interior center of the handle and has three pairs of detent plates in the middle to control turning direction of the ratchet. A rotary knob is provided having an actuation bar beneath to move the detent plates. Thus a plurality of driving bars which hold the coupling heads of different shapes and sizes can be held in the handle. The socket wrench thus formed can be grasped easily and change of driving direction can be accomplished rapidly.

Abstract: A screw (10) and driver (30) system comprises a range of screws and a driver. Each screw has a head (12) having a driving recess (14) in its surface (13) for engagement by the driver. Each screw has a longitudinal axis (100). The recess (14) of larger screws in the range have a plurality of superimposed recess-tiers (16a,b,c) of decreasing size with increasing depth from said surface. Each recess-tier has substantially parallel driving surfaces. They are substantially parallel the longitudinal axis. The driver and recess are shaped so that, when the driver is engaged with the recess of any screw in the range, torque applied to the driver is transmitted to the screw through said driving surfaces. At least one recess-tier (16c) of at least smaller screws in the range has a rib (20) which is parallel the longitudinal axis (100) and encroaches into the space of the recess-tier occupied by the driver when it is engaged with the recess.

Abstract: A screw driving tool is used to stably clamp a tiny screw and tighten the clamped screw into a screw hole on a spectacles frame for repairing the spectacles. The screw driving tool includes a screwdriver and a clamping sleeve consisting of a rigid outer layer and an elastically compressible inner layer. The clamping sleeve has a first end, into which a head of the screw for spectacles may be extended, and a second end, into which a blade of the screwdriver is extended. The screw head extended into the first end of the clamping sleeve is clamped thereto by the elastically compressive inner layer of the clamping sleeve, so that the tiny screw can be easily aligned with the screw hole on the spectacles and tightened using the screwdriver.

Abstract: Disclosed is a tool for turning a hex screw at the top of a denture compress containing denture flasks which comprises a hex key wrench having a shaft of finite length. Turning the hex screw in one direction causes pressure to be applied to a plate beneath it, and to the denture flasks within the compress. At one end of the shaft there is a handle perpendicular to the shaft, a T-handle. At the opposite end of the shaft a plurality of hex keys of different sizes are formed, in a contiguous relationship, the largest hex key being closest to the shaft and the smallest being furthest from the shaft. The T-handled hex key is supported by a frame which is attached to a flat base plate. The frame is perpendicular to the plane of the base plate, which has either within its surface or on its surface means for temporarily securing the dental compress thereto.

Abstract: A rotary tool includes a tool holder, a reversible bit, and an outer guide sleeve. The tool holder includes a socket and a shank. The socket includes an opening extending rearwardly from an end thereof. The shank is integral with and extends rearwardly from the socket and includes a non-circular cross-section. The reversible bit includes an inner sleeve, a first reversible bit driver, and a second reversible bit driver. The inner sleeve is disposed within the socket and rotates with the tool holder. One of the first and second bit drivers contains a bit having an end extending axially out of the socket opening. The outer guide sleeve is slidably coupled to and disposed over the socket. The outer guide sleeve is displaceable from a first position where a portion of the bit end extends outwardly beyond a first end of the outer sleeve to a second position where the bit end is completely disposed within the outer guide sleeve.

Abstract: A portable screwdriver has a tip cartridge movably mounted inside the portable screwdriver. The tip cartridge can protrude from and be stored in the portable screwdriver and has multiple clamps formed, which hold the tips that can be individually detached from the tip cartridge and mounted on the portable screwdriver. Thus, the portable screwdriver is compact and facilitates carrying. Moreover, the portable screwdriver stores the associated tips inside and effectively prevents the tips from being lost.

Abstract: A tool set includes two grips installed with a tool-mounting rod and a positioning member between. The tool-mounting rod is pivotally linked with plural tools. Each of the grips has a through hole for a projecting bar respectively projected at two ends of the positioning member. The positioning member has plural jags, slopes and restricting grooves. One of the projecting bars is mounted with a spring. In using, choose a tool and swing it up to lean on the slope, and then, press down the tool to move against the slope to enter the restricting groove. Then the spring is to elastically push the positioning member back to its original position, keeping the tool restricted in the restricting groove immovably for operating it safely.

Abstract: A bit holder is provided which includes a body having a cavity formed with an upper portion and a lower portion, separated by a ridge-like protuberance which has a cross sectional profile smaller than that of the upper portion and the lower portion. The ridge-like protuberance is formed on each sidewall of the cavity to form an interference fit. A method of manufacture includes the use of a punch to force material from the upper portion downwards towards the lower portion of the cavity to form the ridge-like protuberance.

Abstract: A hex wrench device, comprising at least one longitudinal member and at least one pair of complementary wrench sleeves which can be magnetically and longitudinally connected to the longitudinal member, wherein a hex key having a larger total surface area than that of the longitudinal member is formed when the complementary wrench sleeves are magnetically and longitudinally connected to the longitudinal member.

Abstract: A multi-bit screwdriver comprises a housing with a bit chuck at the front end and bit assemblies retained within the housing. Each bit assembly has a tool bit at a front end and a contact surface at a back end. An actuator extends from each bit assembly for operative engagement by a user, for movement of the actuator and bit assembly between a forwardly extended in-use configuration whereat the bit assembly is positioned such that the tool bit extends outwardly from the housing, and the contact surface of the bit assembly is disposed in longitudinal force transmitting engagement against a forward facing abutment surface to preclude rearward movement of the bit assembly due to substantially longitudinally directed forces transmitted from the tool bit, and a retracted configuration whereat the contact surface of the bit assembly is removed in a lateral direction from the longitudinal force transmitting engagement with the forward facing abutment surface.

Abstract: An opener head retainer comprises a handle held by users; a front end of the handle having a receiving groove; an operation portion capable of being inserted into the receiving groove; a receiving portion formed by a casing, an inserting disk, an elastomer, and a cover. An inner side of the casing has a receiving space for receiving the inserting disk and the elastomer. A periphery of the through hole has two lower inclined resisting sheets. A lower side of the inserting disk is enclosed by two upper inclined resisting sheets capable of resisting against the two lower inclined resisting sheets so to control the vertical orientation of the inserting disk in the casing. Each of the opener heads is placed between a corresponding one of the clamping groove and a corresponding one of the receiving openings.

Abstract: A rotary tool includes a tool holder, a reversible bit, and an outer rotatable sleeve. The tool holder includes a socket and a shank. The socket includes an opening extending rearwardly from an end thereof. The shank is integral with and extends rearwardly from the socket and includes a non-circular cross-section. The reversible bit includes an inner sleeve, a first reversible bit driver, and a second reversible bit driver. The inner sleeve is disposed within the socket and rotates with the tool holder. One of the first and second bit drivers extends axially out of the socket opening. The outer rotatable sleeve is disposed over at least a portion of the socket and the bit driver extending axially out of the socket opening. The outer rotatable sleeve further includes a magnet in an end proximate the bit driver extending axially out of the socket opening.

Abstract: A screwdriver is provided having a handle having a first end and a second end; a front element having a bit holder, said front element aligned with said handle along an axis; a cylinder positioned between said handle and said front element, said cylinder having a plurality of chambers, each of said chambers shaped to store a bit; said cylinder rotatable around said axis; and a push rod having a first end and a second end, said push rod slidable along said handle from a first end of said handle to a second end of said handle, said push rod having a magnet at said first end.

Abstract: A hand tool includes a handle body, a cover having two exposing slots and a stop plate formed with a passage, and two rotation wheels each rotatably mounted in the handle body and each having an inside formed with receiving holes to receive tips and a peripheral wall formed with an opening that is movable to align with the respective exposing slot and the passage of the cover. Thus, the user only needs to rotate the rotation wheels to select and take out the desired tip, thereby facilitating the user operating the hand tool. In addition, the tips are directly stored in the handle body so that the user needs not to additionally prepare a storage box to store the tips, thereby facilitating the user carrying the hand tool.

Abstract: The driver has a number of cartridges assembled around a central axis, engaging each other along abutting longitudinal edges. Each cartridge has its own spring-loaded mechanism for extending or retracting a bit through a central axial opening of a collar at the distal end of the tool. The mechanism translates a small movement of an actuation button into rapid and much larger movement of the bit associated with that cartridge, whether that movement is extension or retraction.

Abstract: In one embodiment, a screwdriver having interchangeable bit bodies with permanently affixed bit heads is provided. In another embodiment, at least one transparent end cap is provided to display a bit head in an engaged position ready for use. In another alternative embodiment, transparent end caps are provided at two ends of the screwdriver. In still another embodiment, two end caps are provided that may nest with each other. In yet another embodiment a rotatable end cap is provided. The various embodiments of the precision screwdriver may be utilized independently or in combination. One combination provides a screwdriver comprising two transparent, nesting, and rotating caps. A user can apply pressure to an end cap top (whether nested or not) to stabilize the screwdriver for a particular job while rotating the screwdriver independent of the nesting cap top.

Abstract: A pocket screwdriver has an oval body portion having a hole through the width of the body portion for holding a first double-ended screwdriver bit and a shaft portion having a hole for holding a second double-ended screwdriver bit. The bits can be interchanged by removing the bit from the shaft and using it to push out the bit from the body portion. The wide body portion enables the user to more easily use the screwdriver, while the hole in the body portion allows an additional screwdriver bit to be used.

Abstract: A driver has components that are easily disassembled for cleaning and/or sterilization. Once disassembled, the limited number of components allows for easy reassembly. The driver utilizes a cam that rides on spring fingers for determining the level of producible torque that the driver can produce. The cam and spring fingers are contained in a housing. Particularly, the spring fingers are part of a finger housing that is key lockable with the housing when assembled for movement as one unit. The cam is integral with a driver shaft and is received within the finger housing. The cam and driver shaft are limitedly rotatable with respect to the finger housing. The level of producible torque may be changed by providing cams and/or spring fingers of various dimensions. The driver is torque-limiting in one direction (tightening) and essentially non torque-limiting in the opposite direction (loosening). The various components are also large enough to be easily handled reducing the chance of lost components.

Abstract: A ratchet screwdriver includes a screwdriver body, a magazine body journalled and disposed removably within the screwdriver body for receiving a plurality of bits, and a ratchet unit disposed on a front end of the screwdriver body. A driving rod is movable in the screwdriver body between a front limit position, where a selected one of the bits projects from the ratchet unit for performing a screw driving operation, and a rear limit position, where the magazine body can be removed from the screwdriver body.

Abstract: A multi-bit driver comprises a longitudinally oriented housing including a bit chuck at one end; a plurality of tool bits nested within said housing in a retracted position; and bit assemblies including tool bits and being operable to extend said tool bit from said refracted position to said extended position by a single longitudinal motion for selectively extending tool bits to an extended position and retracting said tool bits to said retracted position, such that in the extended position, said tool bits project from said bit chuck and are substantially longitudinally aligned with said housing.

Abstract: The extendable socket extension is a tool that allows the user to be able to reach into small, tight places to either attach or remove bolts or screws. A first piece and a second piece are slideably connected. By using a thumb release, the second piece can slide in or out to a desired length. Once the desired length is reached the thumb release engages a locking pin holding the first and second piece to the desired length. A ratchet is then attached to the first piece and a socket wrench is attached to the second piece. The socket wrench is then attached to the bolt or screw to be inserted and removed and is rotated into or out of the desired location by the ratchet.

Abstract: A hand tool is formed of a handle and a removable tool part . The tool has a protruding section and a first magnet at the end of the protruding section. The handle has a bore with a second magnet. The tool is assembled by inserting the protruding section into the bore so that the first magnet contacts the second magnet. Ramps are provided on the tool part and handle; the tool is disassemble by rotating the tool part relative to the handle. Thanks to the ramps, the magnets are separated : the tool part and the handle may then be pulled apart.

Abstract: A tool shaft and tool bit arrangement is disclosed to include a hollow shaft, which has a hexagonal through hole through the two ends to accommodate a number of tool bits in a line, a locating block held down by a clamp in a radial through hole near the front end of the shaft to hold down the first tool bit, a steel ball held down by a clamp in a radial through hole near the rear end of the shaft to hold down the last tool bit, and a grip fixedly fastened to the periphery of the rear end of the shaft.

Abstract: The hand tool has a chuck with a central axial opening through which bits or other tool elements are selectively moved from a retracted position to an extended operative position. A mechanical element automatically engages the tool element, such that as the tool element reaches its operative position, it is automatically locked in place, such that it cannot be retracted without user intervention to retract the mechanical element and thereby permit retraction of the tool element. In a specific preferred embodiment the mechanical element is at least one pivotally mounted cam, biased to engage the tool element once the tool element is extended to its operative position. A user-operable mechanism such as a collar for example, spring-biased against retraction, is arranged to contact the cam when retracted against the force of the spring, to rotate the cam so that it no longer engages the tool element, thus allowing the tool element to be retracted to its storage position.