Abstract: An armorer's wrench can include an elongate wrench body having an implement end structured and configured to define a plurality of wrench interfaces, and a handle end opposite the implement end being structured and configured to define a handle shape with a molded grip. The plurality of wrench interfaces can include at least one of a barrel nut wrench and a castle nut wrench, and the handle end can be devoid of wrench interfaces. The armorer's wrench can further include a plurality of hammer heads, hammer head storage, and a hammer head receiver. The handle end may be structured and configured to provide the hammer head storage, and the implement end may be structured and configured to provide the hammer head receiver. Each of the plurality of hammer heads may be structured and configured to securely and releasably attach to the hammer head receiver and to the handle end.

Abstract: A dual-interface sewer cap removal device is provided. The device includes a base plate with a first side provided opposite a second side. A first interface is defined on the first side of the base plate. The first interface is designed to engage a slotted sewer cap. A second interface is defined on the second side of the base plate. The second interface is designed to engage a sewer cap. The second interface is structurally distinct from the first interface. An aperture is centrally disposed on the base plate.

Abstract: A device for facilitating removal of a drop tube from an underground liquid storage tank, comprises a plate configured to fit within a spill restrictor fitted to the underground liquid storage tank.

Abstract: A nut driver includes an elongate drive shank and a reversible socket. The socket has a first hex socket opening sized to engage a hexagonal profile of a first size, and a second hex socket opening sized to engage a hexagonal profile of a second size that is larger than the first size. The socket is mountable on the drive shank in either a first orientation that presents the first hex socket opening for use, or a second orientation that presents the second hex socket opening for use. Additionally, in the first orientation, the socket is mountable in either a screw head receiving position or a drive bit receiving position.

Abstract: An engagement structure of a socket wrench contains: a body including a drive head, an accommodation chamber, a ratchet member received, a hexagonal groove, a circular large-diameter notch, multiple recessed, and a hexagonal small-diameter orifice. The hexagonal groove is configured to accommodate a locating sleeve. The locating sleeve includes an upper extension, a hexagonal positioning portion, a hexagonal receiving hole, multiple columns, two opposite central holes, two steel balls, and a slot. The locating sleeve further includes multiple springs fitted on the multiple columns of the multiple cutouts. The upper extension of the locating sleeve is connected with of the hexagonal small-diameter orifice and a hexagonal coupling aperture of a control disc, and a C-shaped retainer is engaged in the slot of the locating sleeve so that the C-shaped retainer abuts against the control disc, thus connecting the ratchet member, the locating sleeve, and the control disc.

Abstract: A ratchet socket may include a main body, and an outer periphery of the main body has ratchet teeth formed in an endless circular pattern to form the main body with a polygonal cross section. The main body comprises a hexagonal inner periphery to form six internal angles and six inner edges. Each of the inner edges has an engaging portion at a middle portion thereof, and each of the inner edges comprises two abutting portions at two sides of the engaging portion between the engaging portion and each of two adjacent internal angles. Each of two recess portions is formed between the engaging portion and the abutting portion to form two engaging teeth on two lateral edges of the engaging portion. Each of the internal angles is curved to form an inclined surface between the abutting portion and the adjacent internal angle.

Abstract: A bushing handle for use with a renewable bushing. The bushing handle facilitates a quick-change configuration by using a liner bushing disposed in a through bore. The liner bushing can accept a plurality of different renewable bushings having various inner diameters and other characteristics, eliminating the need to stock and store a multitude of different bushing handles. The liner bushing may be a lock liner, which facilitates the quick-change function, and provides a ground inner diameter, which is more resistant to wear and tear than the light metal construction of the handle itself.

Abstract: A socket includes a first and a second sleeve members. The first sleeve member has a first end for connecting to a driving tool and a second end having a first connecting portion for sleeving onto a first fastener, and has an internal space and an internal circumferential wall. The second sleeve member is movably inserted into the internal space and has an external circumferential wall and a second connecting portion connected together. The second connecting portion is for sleeving onto a second fastener whose size is different from a size of the first fastener. One of the external and the internal circumferential walls is tapered from the first end toward the second end to form a gap. The other one of the external and the internal circumferential walls has a restriction unit extending into the gap.

Abstract: A firefighter multi-tool is configured as a standpipe operations spanner tool and comprises several features for adjusting standpipe pressure regulating valves, and performing other functions performed by firefighters. The tool includes a handle portion and a lateral coupling portion. The lateral coupling portion includes an adjustable wrench having a fixed jaw elements and a moveable/adjustable jaw element. The tool can include a socket portion at the end of the handle opposite the lateral coupling portion. A valve cap spanner can be includes on the lateral coupling portion opposite the adjustable wrench.

Abstract: A multitool includes a carabineer gate. The multitool further includes a body portion. The body portion includes a carabineer portion, the carabineer portion including a hook portion and apertures for receiving the carabineer gate. The body portion further includes a wrench portion, the wrench portion located in a portion of the carabineer portion, the wrench portion including a first aperture sized to receive a nut. The body portion further includes a screwdriver portion and a bottle opener portion.

Abstract: An improved socket having a drive end opening being so dimensioned for receiving a drive anvil, the opening comprising a plurality of bounding surfaces parallel to a central axis and being disposed in diametrically opposed pairs about the axis, where the diametrically opposed pairs of bounding surfaces include: at least two pairs of flat side surfaces being parallel to each other about the central axis; at least two pairs of curved recess surfaces forming respective inner corners of the drive end opening; and adjacent pairs of outwardly diverging transition surfaces transitioning between respectively adjacent pairs of the flat side surfaces and the curved recess surfaces. The improved socket increases corner radius for minimizing stress concentration at the corners and provides outwardly diverging transition surfaces for relocating the areas of maximum stress away from the corners.

Abstract: A ratchet wrench includes a body, a ratchet wheel, a pawl, a switch unit, a ring, a top clip and a bottom clip. The body includes a through hole, a first recess, a second recess, a top recessed area and a bottom recessed area to accommodate the ratchet wheel, the pawl, the switch unit, the ring, the top clip and the bottom clip. The ratchet wheel has a first pivotal portion, a top groove, a second pivotal portion and a bottom groove. The pawl has a notch. The switch unit is pivoted to control the movement of the pawl in the first recess. The ring is located in the top recessed area and has a fourth pivotal portion connected to the first pivotal portion. The top clip and the bottom clip respectively clip two ends of the ratchet wheel to restrict the ring and the ratchet wheel.

Abstract: A wrench and a method for performing gunsmithing operations is disclosed. The wrench may have a first end and a second end. The first end may have an integrated two-sided castle nut and flash hider wrench aperture, and the second end may have a tool interface. The aperture may have a plurality of raised elements for engaging indentations in a castle nut, each of the raised elements extending at least one of inwardly from a wall section of the aperture and upwardly from a first face of the wrench. The aperture may have a flash hider cutout portion.

Abstract: A ratchet wrench having a flexible positioning structure includes a drive bar, a rotary head, and a locking button. The drive bar includes a fork arm, an axial hole, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to the fork arm; the rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis passing through the rotary head and two ends of the fork arm. The pivot axis is perpendicular to the radial hole. The locking button includes a flexible fastener inserted through the radial hole and a latch bar disposed in the axial hole. The flexible fastener is flexibly movable in association with movement of the latch bar, so that the latch bar is engaged with or released from any of the positioning recesses.

Abstract: A socket wrench includes a wrench body, a ratchet wheel and a positioning ring. The ratchet wheel has a driving hole and a cylindrical flange extending on one side of the wrench body. The cylindrical flange has at least one aperture defined through the outer periphery thereof and communicating with the driving hole. The positioning ring is an O-shaped ring and surrounded the outer periphery of the cylindrical flange, and has a central bore. At least one protrusion radially protruded from the inner wall of the central bore of the positioning ring. The protrusion is projected from the wall of the driving hole through the aperture to position a socket. The positioning ring is moved a distance along the radial direction relative to the ratchet wheel by being pushed toward the at least one protrusion to completely retract the at least one protrusion into the aperture to release the socket.

Abstract: A driver tool has a grip handle. The grip handle has a grip handle height less than a grip handle width. A first axis base is mounted to the grip handle. The first axis base includes a first saddle flange and a second saddle flange. A pair of primary link pins are mounted to the first saddle flange and the second saddle flange defining a first axis of rotation. A coupler link is mounted on the first axis of rotation to rotate on the first axis of rotation relative to the first axis base. A pair of secondary link pins mounted to the coupler link. The pair of secondary link pins define a second axis of rotation that is perpendicular to the first axis of rotation. A driving link is mounted to the second axis of rotation. The driving link includes a driving socket.

Abstract: A ratchet wrench capable of rotating quickly and driving rotation includes a handle, a rotary head, a positioning mechanism, and a sleeve. The handle includes an arm and a bar body. The bar body includes an accommodating slot; the arm includes a through hole. The rotary head is connected to the arm and includes recess portions. The positioning mechanism includes a positioning element, a resilient body, and a block element. The resilient body receives the positioning element and is received in the through hole, the positioning element is correspondingly disposed in any of the recess portions, and the block element is connected to the positioning element. The sleeve receives the bar body and operably drives the block element to slide in the accommodating slot, so that the positioning element is positioned and selectively engaged with any recess portion.

Abstract: A ratchet wrench includes a wrench body, a ratchet wheel and a C-ring. The wrench body has a working end defining a stepped hole. The stepped hole includes an outer large-diameter portion, an inner small-diameter portion and a shoulder disposed at a junction of the large-diameter portion and the small-diameter portion. The ratchet wheel is rotatably mounted in the stepped hole of the wrench body, and has a row of teeth therearound and a flange located proximate to the teeth. The flange rests upon the shoulder of the stepped hole. The C-ring is placed around the ratchet wheel and rests upon an upper surface of the flange of the ratchet wheel. Moreover, the C-ring is configured and sized to be detachably engaged in an annular groove defined in an inner wall of the large-diameter portion of the stepped hole for retaining the ratchet wheel within the stepped hole of the working end of the wrench body.

Abstract: A combination ER wrench is disclosed for use in installing and tightening collet holders in connection with milling machines or machining centers. The disclosed wrench combines the function of multiple wrenches. The disclosed wrench has two open ends and two box ends that fit various collets and collet holders common in the industry, along with a box end to fit a retention knob. The open ends of the wrench have arcurate jaws and five points to contact the collet and/or collet nut. The box ends of the wrench are openings shaped to contact the collect and/or collet nut.

Abstract: In general, the invention is a wrench made of a heavy and rust-resistant steel, which is 7-gauge in a preferred embodiment, as well as zinc coated in a primary embodiment, formed to one of the water filter sizes, including but not limited to: SW1, SW2, SW3, SW5-a, 144880 BW-BC, C-shaped (open end) Universal style, S3072, HT-HTF, OW1, OW2, OW6. The handle is at least 1.5 times the head diameter for easy use and the head is fitted with the various water filter sizes. A plastic or rubber cover is used on the handle for grip and for installing directions.

Abstract: A device comprising an elongated body having at least one aperture through the body, said aperture silhouetting a barrel bushing for a model 1911 handgun. The device fits snugly and allows the device to operate as a bushing wrench. The aperture may have a longer dimension, said longer dimension substantially perpendicular to the long axis of the elongated body so that the aperture is operable to mate with and operate a barrel bushing. Certain embodiments may include additional openings that silhouette barrel bushings for the same or other firearms or recessed regions on the elongated body adjacent to an aperture that further guide and receive the barrel plug when it is released. The recessed regions may include a ramp section and a plug retention section that act to better hold and guide the barrel plug during removal and insertion operations.

Abstract: A socket is adapted for being disposed in a sleeve hole of a wrench wherein the sleeve hole has a positioning element disposed on an inner wall of the sleeve hole. The socket includes a main body having a driving portion and a connecting portion at two ends. The connecting portion has a polygonal external surface including plural driven faces arranged around an axial direction. A shared edge is formed between every two adjacent driven faces, and at least one shared edge is formed with a notch for receiving the positioning element. The notch has a triangle cross-section and has a steeper first bottom face and a second bottom face which is more remote from the driving portion than the first bottom face. Thus, the socket can be prevented from moving forward and is easier to remove.

Abstract: The disclosure addresses wrenches having a portion thereof including carbon fibers. Example wrenches may have a handle portion comprising the carbon fibers; which in some cases can be formed as a part of a composite laminate structure of at least a portion of the handle. Example wrenches will often include an insert portion for engaging a bolt, nut, or similar structure. In most cases, the insert will be formed of a relatively hardened material, such as a metal, or a metal-containing, material.

Abstract: The present invention is composed of a main body, a rotary ring, a fixing member, and a spring plate. The main body includes a sleeve projecting from a top end of a driving hole and including a guide aperture extending through the driving hole. The rotary ring has a bore rotatably coupled to the sleeve to be rotatable between first and second positions. The bore has an inside surface forming a retention chamber having first and second recessed curved faces. The fixing member is movably received in the guide aperture. The spring plate is arranged between the fixing member and the retention chamber and has one side fixed to the sleeve and a curved section formed between two sides thereof. In the first position, the first recessed curved face positions the curved section. In the second position, the second recessed curved face positions the curved section.

Abstract: A ratchet wrench includes a wrench body having a circular space defined at a head portion of the wrench body, a ratchet with a hollow center placed into the circular space. The ratchet is symmetric to the wrench body. The inner wall of the ratchet has a plurality of first ridges formed thereon. A first recess is formed between each of two adjacent first ridges. Each of the first recesses selectively has a second ridge formed thereon. A second recess is defined on the second ridge. The shape of the second recess is as same as the first recess. In this way, a user can directly alternate the big and small bolts in the ratchet wrench, rather than turn over the wrench to fit the big or small bolt.

Abstract: The invention relates to a device (1) for tightening and releasing clamping tools (16), such as draw-in collet chucks, mandrels and the like which allows a torque to be concentrically transferred onto a clamping device, such as a locknut (17), clamping screw or the like without radial stress and without the threaded sections of the clamping device (17) and the collet chuck base (31) or the like being subjected to an unbalanced load. In a preferred embodiment, the device (1) is universally applicable, has an especially simple design and can be rapidly adapted to the respective clamping tools (16).

Abstract: A wrench drive socket having jaws, actuated by a cam mechanism, facilitating the accommodation of a range of faceted work pieces is provided wherein adjustment of the distance between the jaws having V-shaped grips is accomplished by rotation of a knurled adjustment collar circumferentially disposed around a socket sleeve and fixed to an internally positioned jaw guide, the rotation of the jaw guide selectably positioning cam followers on the jaws against arch shaped cam profiles fashioned along the inside circumference of the socket sleeve, the sleeve being fixed to a centrally disposed socket body having an engaging hole to receive a drive shaft of a wrench such as a ratchet wrench. The adjustable drive socket provides advantages over the prior art including simplified construction, convenience of use, durability, effectiveness, and cost and weight reduction through the elimination of a plurality of sockets having fixed sizes.

Abstract: A wrench socket for use on fasteners such as pipework fittings where closed pipework or other obstructions would normally prevent the use of a ring wrench or closed sockets has a plurality of swivel arms pivotally mounted to a socket main body. The swivel jaws can be opened and closed as required around pipework and the fastener. Formations on the swivel arms align with one another when the swivel arms are closed allowing engagement by a drive bar that locks the swivel arms together. The swivel arms cooperate with the socket main body to define a polygonal fastener receiving aperture. The socket main body can be made thin profile to allow the wrench socket to be used in close proximity to obstructions that would prevent the operation of prior art wrenches and wrench sockets.

Abstract: An apparatus for use in adjusting an endplay of a bearing of a wheel hub assembly includes an outer circumferential surface configured to be received within an annular space around the nut attached to a shaft of the wheel hub assembly and retaining the bearing on the shaft. An engaging surface is coupled to the outer circumferential surface and configured to engage the nut. A stopping surface is coupled to the engaging surface and configured to abut an outer surface of the nut opposite the bearing such that the engaging surface is positioned in an engaging position to engage nut engaging surfaces of the nut. An arm is connected to the stopping surface and extends out of the annular space away from the bearing and substantially parallel to an axis of the shaft when the stopping surface abuts the outer surface of the nut.

Abstract: A driving device includes a driving shank, a magnetic member mounted in the driving shank, a stop ring secured in the driving shank to stop the magnetic member, and an elastic member biased between the driving shank and the magnetic member. The driving shank has a first end provided with a mounting post and a second end formed with a mounting hole and a receiving chamber. The stop ring has an inner wall formed with a through hole and an outer wall provided with a toothed portion engaging a peripheral wall of the receiving chamber. The magnetic member has a peripheral wall formed with a stop flange that is movable to abut the stop ring. Thus, the elastic member provides a buffering effect to the magnetic member to reduce the pressure applied on the magnetic member.

Abstract: A socket wrench in which a supporting hole is formed in a drive disposed at an operating handle, and a steel ball pressed by a coiled spring is movably engaged with the supporting hole. A recess part for allowing the steel ball to partly engage therein is formed in an inner wall of an assembling hole of a wrench body for allowing the drive to engage therein. A connecting hole engageable with a polygonal head part of a bolt to be operated is formed in the wrench body in such a manner as to be coaxial with the drive. The recess part has a pair of contacting walls for the steel ball to contact therewith, the pair of contacting walls being disposed in mutually intersecting directions.

Abstract: An open end wrench head including first and second jaws that are adapted to engage a workpiece located in a hard-to-reach area. The jaws can include a chamfered portion on the end of the jaws that allows the wrench to be presented at an angle to the workpiece and still maximize the engagement area between the wrench and the workpiece.

Abstract: A wrench for action on a work piece is provided. The wrench is a box end socket wrench. The socket wrench has an elongated handle with a box head. The box head has a top and a bottom surface and an inner wall defining an inner aperture. The inner wall is shaped to receive the work piece and has a receiving groove spaced apart from the top surface of the box head to receive a biased member. The biased member extends into the inner aperture of the box head to releasably secure the work piece. When the work piece is inserted in the inner aperture of the box head, the work piece sits flush with the corresponding top and bottom surface of the box head of the wrench.

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: The leverage device is intended to be installed on motorcycle stands that currently use a hex head machine screw for width adjustment. It consists of a) a female hex portion to mate with the hex head of the machine screw, b) a lever portion to be actuated by the user and c) a flat bottom to keep it captive to the machine screw. The device allows the user to loosen the screw slightly for width adjustment then re-tighten it without the use of tools. The low profile device is installed on the motorcycle stand to become a permanent part of the stand, unlike a wrench that is separate.

Abstract: A drive tool that includes a drive socket. The drive socket includes alternating flutes and lobes and has a conical portion. The lobes, rather than being tapered in the conical portion of the socket, are each uniform in width as they progress to an end of the socket. The fact that the lobes are uniform in width in the conical portion of the drive socket provides for better engagement with the flutes of a conical section of a fastener.

Abstract: In general, the invention is a wrench made of a heavy and rust-resistant steel, which is 7-gauge in a preferred embodiment, as well as zinc coated in a primary embodiment, formed to one of the water filter sizes, including but not limited to: SW1, SW2, SW3, SW5-a, 144880 BW-BC, C-shaped (open end) Universal style, S3072, HT-HTF, OW1, OW2, OW6. The handle is at least 1.5 times the head diameter for easy use and the head is fitted with the various water filter sizes. A plastic or rubber cover is used on the handle for grip and for installing directions.

Abstract: A hand tool adapter of the present invention includes a wheel shaped main body and at least four sockets. The main body has a top surface, a bottom surface and a peripheral surface. The sockets are firmly disposed in the main body, locating annularly on the peripheral surface. Each socket has a non-circular bore. The main body is formed with no hole which has a dimension larger than the dimension of the largest bore. As such, the structure of the adapter is strengthened.

Abstract: An angular, one-piece, box-end wrench specifically designed to access and grip onto the oil filter Dorman filler cap of the newly designed General Motor (GM) combustion engines, more specifically the GM 2.2L and 2.4L ECOTEC 1-4 engines, comprising of a handle grip, a handle shaft and a box-end wrench. The inventive device includes a handle grip with a 90 degree perpendicular bend forming an elongated handle shaft with a second 100 degree bend distally spaced and opposite to the handle grip accommodating a hex box-end body sized to fit and access the above stated GM oil filter cartridges for maintenance and replacement.

Abstract: The present invention relates to the compact multi socket capable of turning a plurality of bolts or nuts having different diameters by one tool. The outer socket A at the upper part is provided with the handle connecting hole 1, the installed inner socket C and the coil spring 26 installed between the outer socket A and the inner socket C so as to bias the inner socket in a direction for pushing out the inner socket from the outer socket A. The outer socket A, the polygonal sliding inner peripheral surface 4 having the large holding part 5 is formed from the opening part to a part near the intermediate part, the sliding inner peripheral surface 31 is formed at the intermediate part, and a ring sliding inner peripheral surface 17 is formed from a part near the intermediate part to the upper part.

Abstract: An oxygen tank key includes an elongated substantially thin flat handle portion defining a first plane and having first and second ends that define the length thereof and first and second side edges that define the width. A socket, integrally formed with the handle portion between the two ends, has a thickness that is greater than the thickness of the handle portion. The socket includes an aperture that opens adjacent one of the side edges and has a depth extending substantially the width of the handle portion. The aperture has a substantially rectangular cross-section and is adapted to fit onto the rectangularly shaped end of an oxygen tank valve control stem. A slot passes through the handle and is elongated in the direction of the length of the handle. The slot includes champhered ends and is adapted to fit over the lever of a regulator for the oxygen tank to help release the regulator from the tank.

Abstract: A wrench for action on a work piece is provided. The wrench is a box end socket wrench. The socket wrench has an elongated handle with a box head. The box head has a top and a bottom surface and an inner wall defining an inner aperture. The inner wall is shaped to receive the work piece and has a receiving groove spaced apart from the top surface of the box head to receive a biased member. The biased member extends into the inner aperture of the box head to releasably secure the work piece. When the work piece is inserted in the inner aperture of the box head, the work piece sits flush with the corresponding top and bottom surface of the box head of the wrench.

Abstract: A multi-size wrench is defined with an engaging hole in a head thereof, and an inner surface of the engaging hole of the head is formed by six arc-shaped engaging concaves and six arc-shaped connecting convexes which are alternatively connected to each other in such a manner that between each two neighboring engaging concaves is connected a connecting convexes. An angle between the connecting lines from two ends of the respective arc-shaped engaging concaves to the center of the engaging hole is 50 degrees, and an angle between the connecting lines from the center of the engaging hole to a middle connecting point of each arc-shaped connecting convexes and to a connecting end of the connecting convex is 5 degrees. By such arrangements, the multi-size wrench is applicable to a Metric hexagonal fastener, an English hexagonal fastener and a torx fastener which are correspondingly sized.

Abstract: A socket wrench assembly includes three drive shanks each having a bore and each having a socket member attached to the outer end, and each having a smaller compartment and a greater non-circular chamber formed in the socket member, and the inner end portions of the drive shanks are secured together to form a Y-shaped or T-shaped structure for allowing either of the drive shanks to be driven or rotated by the other drive shanks with a greater driving torque, and the chambers of the socket members include inner diameters different from each other for receiving or engaging with or for driving tool members of different dimensions or sizes.

Abstract: A multiple socket ratcheting wrench is described comprising an elongate handle with a first end and a second end. A first mounting element connected to the first end and a second mounting element connected to the second end. A first holder element rotatably attached by a first pin to the first mounting element is provided, wherein the first holder is capable of rotating at least 180 degrees about the first pin, the first holder element defining a first opening and a second opening. The first opening receives a first socket and a second socket, and the second opening receives a third socket and a fourth socket. A first ratcheting means is attached to the first holder element and is configured to control torque direction of the first socket and the second socket, and a second ratcheting means is attached to the first holder element and is configured to control torque direction of the third socket and the fourth socket.

Abstract: A non-slip and anti-burring gas cylinder spanner for tightening and loosening hose coupling nuts used with gas cylinder valves includes a body with a handle extending opposite a head. A nut engaging portion within the head defines an internal aperture having at least five nut engaging sides dimensioned and configured to engage corresponding sides of a hexagonal nut so the sides of the nut engaging element have increased contact points with the sides of the nut, preventing slippage and burring. A backing plate attached to the head is positioned over a part of the nut engaging element so the backing plate indicates correct spanner/nut positioning and prevents slippage of the spanner relative to the nut when tightening or loosening. The nut engaging element and the backing plate combination prevents rotational and side slippage of the spanner relative to the nut and burring of the nut when tightening and loosening.

Abstract: A quad wrench has a head including an internal guide, first and second crowns separated by said internal guide, each of said first and second crowns having a plurality of interior faces, and first and second bolt receiving spaces, each bolt receiving space being at least partially defined by an outer surface of said internal guide and some of said plurality of interior faces, and a shank connected to said head. Each bolt receiving space of each crown is configured to correspond to both a first certain size of bolt and a second certain size of bolt such that a bolt of either certain size received in the bolt receiving space can be rotated when force is applied to the shank, and each bolt receiving space of the quad wrench is configured to correspond to two different certain sizes of bolts.

Abstract: A quad wrench has a head including an internal guide, first and second crowns separated by said internal guide, each of said first and second crowns having a plurality of interior faces, and first and second bolt receiving spaces, each bolt receiving space being at least partially defined by an outer surface of said internal guide and some of said plurality of interior faces, and a shank connected to said head. Each bolt receiving space of each crown is configured to correspond to both a first certain size of bolt and a second certain size of bolt such that a bolt of either certain size received in the bolt receiving space can be rotated when force is applied to the shank, and each bolt receiving space of the quad wrench is configured to correspond to two different certain sizes of bolts.

Abstract: A forcing tool is provided in which a lobe aperture incorporates opposed lobe pairs having driving flanks. Distal ends of the driving flanks define a spacing consistent with the width of a dowel or tang to be utilized in a twisted-dowel joint. The aperture incorporates location recesses to allow the dowel or tang to pass through the aperture and then through twisting create a lock condition.

Abstract: A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.