Abstract: A torque transmission driver has a first end portion adapted to receive and transmit torque from a torque generation source, and a second end portion including a shaped tapered bit having drive surfaces with an alternating series of five or six lobes and troughs about a rotational axis, having a taper angle between 15 and 65° from the rotational axis operable to engage corresponding drive surfaces in a plurality of at least two size fasteners, the tapered drive surfaces of the bit comprising a first tapered portion operable to engage drive surfaces of a first sized fastener and a second tapered portion operable to engage drive surfaces of a second sized fastener, the drive surfaces of the second sized fastener being larger than the drive surfaces of the first sized fastener. The taper angle may be nominally 52° from the rotational axis.

Abstract: An anti-slip fastener driver includes a body portion and a driving portion formed at one terminal end of the body portion. The driving portion includes at least one peripheral face. At least one contact face is formed at one distal end of the driving portion opposite to the body portion. The contact face is beveled and at an inner included angle less than 90 degrees to the peripheral face. The contact face is adapted to abut against a terminal section of a bottom surface of a socket formed in a fastener to increase contact area between the socket and the anti-slip fastener driver for providing enough friction to turn the fastener.

Abstract: Methods and apparatus for an asymmetrical fastening system according to various aspects of the present invention include a driver and a fastener that are configured to have corresponding conforming surfaces suitably adapted to provide substantially complete engagement between a torque surface of the driver and a recessed socket area of the fastener. The driver and fastener may each be configured to include a driving surface that is aligned with a longitudinal axis and a removal surface that intersects a radial extending from the longitudinal axis at an oblique angle. The driver and fastener may further include corresponding tapering surfaces that allow the torque surface of the driver to wedge against the recessed socket area of the fastener.

Abstract: An attachment arrangement (3, 53, 73, 83, 93) for connection to a first construction (1) and in such a connected state be able to hold a second construction (2) where the arrangement has an axial longitudinal extension and shows a first partial portion (3a, 53a, 73a, 83a, 93a), interactable with the first construction (1), and a second partial portion (3b, 53b, 73b, 83b, 93b), interactable with the second partial portion, said partial portions (3a, 53a, 73a, 83a, 93a, 3b, 53b, 73b, 83b, 93b) being connected to each other only by an action means (4, 54, 74, 84, 94), e.g.

Abstract: A screwdriver blade has faces formed on front and back sides of a shank. Each face has a drive surface extending from each side edge inward toward a longitudinal axis. Each drive surface is inclined relative to a plane containing the axis and bisecting each of the side edges. A thickness of the blade increases from the shank distal end. Each of the drive surfaces appears curved when viewed in a distal end view. Each of the drive surfaces extends from the shank distal end to a face proximal end. A central portion between each of the drive surfaces may also appear curved when viewed in a distal end view, or it may be flat. The drive surfaces and the central portion may be formed at a single radius of curvature. The central portion may have a increasing width from the distal end or it may have a constant width.

Abstract: A threaded fastener driving tool includes a proximal end portion, a distal driving head, and a torsion zone extending proximally from the driving head, The distal driving head has a central portion and a plurality of driving surfaces. Each pair of adjacent driving surfaces define a driving space therebetween. The driving surfaces and driving spaces are configured to engage a threaded fastener. The torsion zone includes a plurality of helical grooves bounded by non-cutting surfaces, each helical groove in communication with and extending proximally from at least one of the driving spaces. The helical grooves are configured to untwist and cause lengthening of the torsion zone when an input torque applied to the proximal end portion is insufficient to overcome an output resistance torque at the driving head. The torsion zone may comprise a plurality of twisted wires or cables. A method of manufacturing the driving tool is disclosed.

Abstract: A method of manufacturing a tool bit includes machining a working end into a piece of hexagonal bar stock. A shank adjacent the working end is machined, leaving a hexagonal drive portion adjacent the shank. The tool bit is heat treated, and a coating is applied to the working end, the shank, and the hexagonal drive portion of the tool bit to inhibit corrosion of the tool bit. At least a portion of the shank is polished to remove the coating from the portion of the shank.

Abstract: Disclosed is a screw head having a slot (2) in the upper surface of the screw head, an upper peripheral wall (9) of hexalobular planform extending down into the screw head, the upper peripheral wall (9) being parallel or near parallel to the axis of the screw, a sloping transition surface (15) extending downwardly and inwardly with respect to the lower edge of the upper peripheral wall (9), and a tapered recess (11) extending downwardly from the lower edge of the sloping transition surface (15), in which the dimensions of the screw head are such that when the screw head is engaged by a tool (6) having upper (16) and lower engagement (17) sections, there is a ‘stick fit’ between the surface of the tapered recess (11) and the external surface of the lower engagement section (17), and there is no engagement with the sloping transition surface (15).

Abstract: Pipe splitting apparatuses and systems including a replaceable blade, and methods therefor, are provided. In various examples, a cable retention and release mechanism is configured to releasably engage a cable and includes one or more segments of a pipe splitting apparatus including a cable passage. A segmented collet includes tapered segments and is disposed within a tapered portion of a cable passage of the one or more segments. Channel surfaces of the tapered segments together form a cable channel through the segmented collet. The cable channel is configured to widen in a disengaged position of the segmented collet and narrow in an engaged position of the segmented collet. A spring is disposed within the spring pocket of the one or more segments to bias the segmented collet distally in the engaged position.

Abstract: A torque transmission driver is disclosed having a shaft adapted to receive and transmit torque from a torque generating source to the driver and a nib having a five or six lobe key-shape adapted to fit in a recess in a fastener, the nib being equal to or less than 0.050? in length and having lobes of substantially the same form along the entire second end portion.

Abstract: An apparatus to allow a one-handed operation of mounting a vibration sensor to a mounting pad adhered to a machine. An attachment screw includes a recessed socket with a detent to releasably retain a ball-end hex driver such that the driver can remain coupled to the attachment screw without force being applied by the user. Also, a handheld device includes a driver having a handle portion and a driver shaft extending therefrom, the driver shaft having a driver portion at a distal end, and a vibration sensor support configured to support the vibration sensor such that the driver portion has access to an attachment screw threaded through the vibration sensor, and coupled to the driver such that the vibration sensor support is rotatable around a longitudinal axis of the driver shaft and slidable along a longitudinal portion of the driver shaft.

Abstract: A screwdriver drive design for a screwdriver features an engagement end that is complementary to a fastening element drive design for a fastening element to be screwed. The fastening element drive design includes at least two drive surfaces formed on the fastening element for transmission of a torque suitable for rotation with a tool in a first rotation direction and transition surfaces disposed between these drive surfaces. The transition surfaces form a guide surface for the tool when rotating the tool in the first rotation direction and upon engagement of the tool in the other rotation direction causes an axial outward displacement of the tool, wherein the transition surfaces are formed as outside surfaces, and wherein the outside of the fastening element, outside the transition surfaces and the drive surfaces, lies in a cylindrical jacket forming a recess.

Abstract: A tool bit having a first end, a second end including an engagement portion for engaging a tool, a shank extending longitudinally between the tip and the engagement portion, and a spring, the spring being fixed to the shank in a manner such that the spring remains in a substantially static position while the tool bit is in use.

Abstract: The invention provides a screw in which the screw head (1) has a slot (2) in the upper surface of the screw head, an upper peripheral wall (9) of regular planform extending down from the rim of the slot into the screwhead, the upper peripheral wall (9) being generally aligned with the axis of the screw to form a recess (3), a sloping transition surface (15), extending downwardly and inwardly with respect to the lower edge of the upper peripheral wall (9), and a further recess (11) extending downwardly from the lower edge of the sloping transition surface (15), in which the dimensions of the screw head are such that when the screwhead is engaged by a tool (6) having upper (16) and lower (17) engagement sections, and in which the upper engagement section (16) extends downwardly with respect to the axis of the screw to which the tool is to engage and the lower engagement section (17) extends further downwardly, and in which there is at least one protrusion (or rib) (21) on the inside wall (12) of the further rec

Abstract: A ball end hex wrench includes a ball end including an engaging section, at least one first pattern, and at least one second pattern. The engaging section includes a plurality of peripheral surfaces disposed circumferentially. The at least one first pattern is defined on one of the plurality of peripheral surfaces. The at least one first pattern has a first longitudinal length and a first height. The at least one second pattern is defined on the one of the plurality of peripheral surfaces. The at least one second pattern has a second longitudinal length and a second height. The second height is different from the first height.

Abstract: Rotationally symmetrical force-application means with, as viewed axially, a star-shaped outer contour or inner contour, preferably for connecting elements, wherein the individual arms of the star are designed as pointed arcs, of which the outer points lie on a common outer circle, wherein an associated counterpart, in particular a bit, insert or screw head, has a mating contour which is adapted to the contour of the force-application means such that the radii of the flanks of the force-application means and the counterpart end up butting against one another in such a manner as to achieve a planar pressing surface.

Abstract: A tool handle includes a handle body having a first end, a second end, an exterior surface and a bore configured to receive a shaft. A wire stripper is integrated into the exterior surface of the handle and configured to cut and remove the insulating layer of a conductive wire. The wire stripper includes a first sharp edge and a second sharp edge intersecting the first sharp edge to form a v-shaped notch.

Abstract: A screwdriver bit is revealed. The screwdriver bit includes a driving portion, a narrow neck portion integrated with and extended from the driving portion, and a working segment integrated with and extended from the narrow neck portion. The narrow neck portion consists of a connection portion, a first tapered transition, and a second tapered transition. The first tapered transition is an arc taper and the second tapered transition is a straight taper. When the screwdriver bit is driven by a power tool and is rotated at high speed, the torsional stress generated is dispersed by the first tapered transition while the second tapered transition is used to reduce torsional stress of the narrow neck portion. Thus the wearing of the screwdriver bit is effectively reduced.

Abstract: A hand tool includes a shaft, at least one affecting portion, and a protection layer. The shaft is like a bar, and can be hold by a hand. The affecting portion connects with the shaft. The affecting portion can grip a specific part which a user wants to control. The protection layer is settled and/or covered on at least one portion of the hand tool surface. The protection layer is lumpy and rough. Because of the protection layer, the hand tool is shake-proof, wear-proof, slip-resistance, and electric insulation.

Abstract: A torque transmission driver is disclosed. The torque transmission driver has a drive axis and a main body with a first end portion and a second end portion, where the first end portion is adapted to receive and transmit torque from a torque generating source to the driver, and the second end portion is opposite the first end portion and has a key shape adapted to fit a recess in a fastener and has a protruding lead end having a taper between 10° and 30° and different in shape than the key shape with at least a portion of the protruding lead end initiating at the major dimension of the key shape. A torque transmission driver adapted to drive a small fasteners is also disclosed where the key shape is adapted to fit the recess of the small fastener.

Abstract: A tool for loosening and/or unscrewing a screw in an object. The tool includes a frame dimensioned and configured to receive (or be mounted on) an object having at least one screw removably embedded therein.

Abstract: A wire thread insert comprises besides a cylindrical helix consisting of a plurality of coils a moving tang projecting into the interior of the helix for installing the wire thread insert into a receiving thread. The wire thread insert is connected to the cylindrical helix via a bending portion such that the moving tang can be redressed into the receiving thread after installation of the wire thread insert. The wire thread insert is installed by means of an installation tool with a mounting spindle, which installs the wire thread insert in the receiving thread via a moving shoulder and the moving tang. A compression blade provided at the mounting spindle bends the moving tang back into the receiving thread while the mounting spindle is removed from the installed wire thread insert.

Abstract: A screw tightening structure includes an indented concave recess formed on a screw, and mating convex sections provided on a screw tightening tool for tightening the screw: the recess and the mating convex sections including three or more torque transfer portions, respectively, which protrude outward and are disposed at equiangular intervals for concentrically mating engagements; rotating the screw tightening tool causing the torque transfer portions of the mating convex sections to transfer a tightening torque to the screw via the torque transfer portions of the recess; under which outer circumferential edge portions of the torque transfer portions of the mating convex sections to be brought into abutting contact with sidewall of the torque transfer portions of the recess with the tightening torque being transferred to the screw via force application points Q representing resulting abutment portions.

Abstract: A screwdriver bit has a shank, a connecting portion, a necking portion defined between the shank and the connecting portion, a head disposed on a distal end of the connecting portion, multiple ribs separately arranged around the connecting portion and the necking portion and multiple shear grooves respectively defined between the connecting portion and the necking portion and each shear groove is defined between two adjacent ribs. When a torsion force is applied to the screwdriver bit, a shear force formed between the necking portion and the connecting portion is concentrated on points where the ribs and the shear grooves connect with each other in a dot-like form. Therefore, the screwdriver bit has strengthened shear strength and prolonged life for use.

Abstract: A torque transmission driver has a first end portion adapted to receive and transmit torque from a torque generation source, and a second end portion including a shaped tapered bit having drive surfaces with an alternating series of five or six lobes and troughs about a rotational axis, having a taper angle between 15 and 45° from the rotational axis operable to engage corresponding drive surfaces in a plurality of at least two size fasteners, the tapered drive surfaces of the bit comprising a first tapered portion operable to engage drive surfaces of a first sized fastener and a second tapered portion operable to engage drive surfaces of a second sized fastener, the drive surfaces of the second sized fastener being larger than the drive surfaces of the first sized fastener.

Abstract: A screw tightening structure includes an indented concave recess formed on a screw, and mating convex sections provided on a screw tightening tool for tightening the screw: the recess and the mating convex sections including three or more torque transfer portions, respectively, which protrude outward and are disposed at equiangular intervals for concentrically mating engagements; rotating the screw tightening tool causing the torque transfer portions of the mating convex sections to transfer a tightening torque to the screw via the torque transfer portions of the recess; under which outer circumferential edge portions of the torque transfer portions of the mating convex sections to be brought into abutting contact with sidewall of the torque transfer portions of the recess with the tightening torque being transferred to the screw via force application points Q representing resulting abutment portions.

Abstract: A torque transmission driver is disclosed. The torque transmission driver has a main body having a first end portion and a second end portion, where the first end portion is adapted to receive and transmit torque from a torque generation source, and the second end portion is opposite the first end portion and has a key shape adapted to fit a recess in a fastener and has a protruding lead end having a taper between 10 and 30 and different in shape than the key shape with at least a portion of the protruding lead end substantially coextensive with the major dimension of the key shape. A torque transmission driver adapted to drive a small fasteners is also disclosed where the key shape is adapted to fit the recess of the small fastener.

Abstract: Plugs for forming voids in concrete anchors are disclosed herein. An embodiment of the plug includes a head with a shaft extending from the head. The shaft has a first end located proximate the head and an opposite second end with threads extending between the first end and the second end. The diameter of a thread proximate the first end of the shaft is greater than the diameter of a thread proximate the second end of the shaft.

Abstract: A tool head structure includes a body and an assistant rotary member pivotally mounted on a drive end of the body in an eccentric manner. When the tool head is inserted in a worn out hole, and the user rotates the tool head, the assistant rotary member will be pivoted into an eccentric position with respect to the drive end of the body, so that the contacting area of the tool head for contacting the worn out hole is increased, which makes the tool head of the present invention more applicable to the worn out hole as compared to conventional ordinary tool head.

Abstract: A tool bit includes a hexagonal drive portion, a working end, and a shank interconnecting the drive portion and the working end. The shank includes an outer peripheral surface having a curvature in a plane including a central axis of the tool bit. The outer peripheral surface having the curvature includes a length in the direction of the central axis. A ratio of the length of the outer peripheral surface having the curvature to the length of the tool bit is between about 0.2:1 and about 0.7:1.

Abstract: A revolving screwdriver with ratchet structure includes a handle, a pushing rod, and a sliding member. The sliding member has a receiving space and a holding chamber defined therein. A revolving cylinder is received in the holding chamber. The receiving space receives at least one ratchet wheel, two rotators, a limiting member, a base, and an adjuster. The at least one ratchet wheel engages with a driving shaft. The rotators selectively engage with the at least one ratchet wheel. The limiting member locates between the rotators and has a protrusion formed thereon. A base has a first guiding slot defined therein. The adjuster has a driving hole defined therein. The protrusion passes through the first guiding slot and the driving hole for being driven by the adjuster and moving along the first guiding slot.

Abstract: A stuck drill bit having a KCS shank can be removed using an article with a body structure. The body structure has an opening that fits onto the shank, and an inward-facing surface around the opening is at least partially complementary to the surface of the shank. The surfaces engage sufficiently that rotary manual force is transferred from the inward-facing surface to the surface of the shank.

Abstract: A hex wrench includes a handle with a first twist portion having a substantially helical profile through an entire length thereof, a head with a second twist portion having a substantially helical profile through an entire length thereof, and a curved transition portion connected between the handle and the head. A first mounting portion which is a regular hexagonal prism and non-twisted extends integrally from the handle, and a second mounting portion which is a regular hexagonal prism and non-twisted extends integrally from the head. As such, the hex wrench has greater strength and stiffness without reducing its malleability so as to prevent the hex wrench from being cracked or broken due to an excessive applying force.

Abstract: A tool cartridge for a material removal tool has a cartridge body with, among other things, a recess extending through at least a portion of the cartridge body from a first side toward a second side, a long axis of the recess non-parallel to a long axis of the cartridge body and at least a portion of the recess open to a bottom side of the cartridge body, and a threaded opening for a differential screw proximate a second end of the tool body and positioned longitudinally between an opening for a clamping screw and at least a portion of a seat for a cutting tool insert. A thread axis of the threaded opening is at an angle G relative to a long axis of the tool cartridge. A material removal tool, a tool, and a method of adjusting a cutting tool insert are also disclosed.

Abstract: A wrench includes a body, a first driving head, a second driving head, a first ratcheting mechanism and a second ratcheting mechanism. The first ratcheting mechanism connects the first driving head to the body. The second ratcheting mechanism connects the second driving head to the body.

Abstract: A fastener system is constructed wherein the installation and removal drive surfaces intersect an enlarged core diameter in a transitional surface that extends between the installation and removal surfaces of adjacent wings. The transitional surface has a concave form that conforms to the core diameter. The projections of the driver in the system are formed in a blunt shape.

Abstract: A hand tool alternately-magnetizing structure includes a body, at least one magnetic component, and an adjustment ring. The body defines a central axis and a handle portion; in which defines at least one recess dented along a radical direction thereof. The magnetic component is received in the recess of the handle portion, and includes a resilient member and a magnetic member. The adjustment ring is sleeved onto the handle portion and capable of angular displacement, and defines at least one switchable portion dented at an interior wall face thereof for corresponding to the recess of the handle portion. The switchable portion describes an adjacent section and an outlaying section, wherein a wall thickness defined at the adjacent section is greater than that defined at the outlaying section. The effective magnetic field is adjusted by selectively aligning the adjacent section and the outlaying section with the recess of the handle portion.

Abstract: A screwdriver bit has a shank, a connecting portion axially protruding from the shank and a head axially protruding from the connecting portion. A stress dispersion recess is formed in an end surface of the shank. The stress dispersion recess disperses a residual stress present in the screwdriver bit. Therefore, the screwdriver has strengthened structure, good durability and prolonged life for use.

Abstract: A screwdriver bit has a shank, a connecting portion, a necking portion defined between the shank and the connecting portion, a head disposed on a distal end of the connecting portion, multiple ribs separately arranged around the connecting portion and the necking portion and multiple shear grooves respectively defined between the connecting portion and the necking portion and each shear groove is defined between two adjacent ribs. When a torsion force is applied to the screwdriver bit, a shear force formed between the necking portion and the connecting portion is concentrated on points where the ribs and the shear grooves connect with each other in a dot-like form. Therefore, the screwdriver bit has strengthened shear strength and prolonged life for use.

Abstract: The present invention relates to a tool holder for holding tools by means of a magnet, which includes a finger socket permitting the tool holder to be mounted on a fingertip for manipulating tool bits or other accessories. The tool holder includes a finger socket and a tool holding portion coupled to the finger socket. The tool holding portion is at least partially formed of material having magnetic properties. Preferably, the magnetic tool holder may include a bit wrench, a socket wrench, screw bits or an element holder.

Abstract: A screw, tool and a system for driving a screw that includes a screw and a corresponding tool is provided. The screw includes a screw head including a slot in the upper surface of the screw head, a tapered recess disposed downwardly of the slot in the screw. The tool includes an upper engagement section which fits within the slot, and a lower engagement section shaped to extend into the tapered recess with a contact surface of an external surface of the lower engagement section in an interference fit with the tapered recess when the upper engagement section is disposed within the slot. The contact surface has a shape which substantially matches any of a plurality of angular inclinations the surface of the tapered recess may have at the interference fit.

Abstract: A tool element has a body and an anti-skid collar. The body has an external surface, a connecting end, an operating end, a mounting recess and multiple notches. The mounting recess is annularly formed round the external surface of the body between the ends and has a bottom face. The notches are formed on the bottom face of the mounting recess at intervals. The anti-skid collar is an annular collar, is detachably mounted around the body and has an inner surface, an outer surface, a holding face and an anti-skid face. The holding face is formed on the inner surface and is rubbed against the notches of the body to hold the anti-skid collar securely on the body. The anti-skid face is formed on the outer surface of the anti-skid collar.

Abstract: The present invention provides a screw bit and holder system wherein the screw bit is capable of tilting or swiveling in order to work at angles off of perpendicular to a screw head. The base of the bit is rounded with sides that are flat to prevent rotating the bit while allowing a tilt.

Abstract: A system includes a fastener and a driving tool configured to mate with the fastener. The fastener includes a driving portion having an upper face, a bottom face, and a side wall extending between the upper and bottom faces. Recessed sections extend into the driving portion from the upper face. Each recessed section includes a first wall in spaced relation to a second wall. At least one of the first and second walls is angled to form a wedge-shaped undercut underlying the upper face of the driving portion. The driving tool includes a raised portion extending from a floor of the driving tool. The raised portion has third and forth walls, and at least one of the third and fourth walls is angled relative to the floor to form a wedge-shaped extension section. The extension section engages with the undercut to interlock the driving tool with the fastener during installation and/or removal.

Abstract: A screwdriver blade has faces formed on front and back sides of a shank. Each face has a drive surface extending from each side edge inward toward a longitudinal axis. Each drive surface is inclined relative to a plane containing the axis and bisecting each of the side edges. A thickness of the blade increases from the shank distal end. Each of the drive surfaces appears curved when viewed in a distal end view. Each of the drive surfaces extends from the shank distal end to a face proximal end. A central portion between each of the drive surfaces may also appear curved when viewed in a distal end view, or it may be flat. The drive surfaces and the central portion may be formed at a single radius of curvature. The central portion may have a increasing width from the distal end or it may have a constant width.

Abstract: A system is provided to facilitate the substitution of power tools for manual manipulation of thread protectors on threaded tubulars. Male-thread protectors are manipulated using a driven cup with a flexible inner liner to engage the protector, the cup having expansion and gripper features. Female-thread protectors are manipulated using a driven elastic body fittably engaged with the inner surface of the protector. The manipulators are fitted with tool adapters to fit power tools such as an impact wrench.

Abstract: A utility grip for extracting broken light bulb structures from all size sockets which can be either gripped with the hand or mounted on standard extension poles and handles for distance extractions. The utility grip engages the broken light bulb structure at whatever remaining structure is left and with a counterclockwise turn the structure to be loosened from the structure. The utility grip can accommodate light bulb sizes of 1.5v to 300v. In the specification, other uses are loosening threaded components such as bottle and container caps, funneling liquids and granulates into small and narrow-necked containers, and holding various household items.

Abstract: An interlock driving instrument is configured to be releasably lockable to a fastener, such as a bone anchor. A bone anchor can be locked to the interlock driving instrument by inserting an expandable distal end of the shaft of the interlock driving instrument into the driving opening of the bone anchor and expanding the distal end within the driving opening by translating an expansion member into the expandable distal end. Alternatively, the bone anchor can be locked to the interlock driving instrument by inserting the distal end of the shaft of the interlock driving instrument into the driving opening of the bone anchor and translating a sliding member along a sloped surface defined in a channel extending into the shaft.

Abstract: A tool for mounting or removing a container of energy that powers an engine or motor that propels a motor vehicle, fixed to the motor vehicle using a lock on which there acts a piston that loads the lock. The tool includes at least one tool attachment device, a device for releasing the load on the lock by acting on the piston, and a device for locking and/or unlocking the battery.

Abstract: Apparatus including a vending machine compartment including a dispensing door openable to permit removal of merchandise from the compartment, the compartment being pivotedly connected to a box assembly, and wherein the dispensing door includes a link element that is constrained to move along a track formed in the box assembly such that the dispensing door is not openable at a first portion of the track and is openable at a second portion of the track.