Abstract: A wrench includes a handle section with a head section which has a fitting through hole configured for fitting onto the polygonal head of a bolt head member. The fitting through hole includes first and second coaxial polygonal fitting holes circumferentially displaced from each other. Each polygonal fitting hole has an inner circumference with a plurality of reentrant angles and sides. At least one channel is formed on the inner circumference of one of the first and second fitting holes. The at least one channel extends in a direction of an axis of the fitting through hole. A sliding member is movably disposed in the at least one channel so as to prevent the polygonal head from passing completely through the fitting through hole. When the other fitting hole engages the polygonal head, the polygonal head may pass completely through the fitting through hole.

Abstract: A wrench that enables a mechanic to easily maneuver through the spatial limitations of a general engine compartment and around the constraints of a vacuum pump to access, loosen and/or tighten the nuts that secure the vacuum pump within the engine compartment.

Abstract: A wrench locking and positioning device includes at least one positioning body formed with an oblique slide guide portion facing an end face of a drive portion of a drive head of a wrench, and an elastic member mounted in the positioning body, for normally pushing the oblique slide guide portion of the positioning body to extend into the drive portion of the drive head of the wrench.

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.

Abstract: Wrench capable of preventing a screwed member from slipping out and holding the screwed member. One end of the wrench has a head section formed with a polygonal socket. Multiple teeth are formed on the circumference of the socket for engaging with the screwed member. An annular groove is formed in the head section and a resiliently stretchable retainer ring is disposed in the annular groove. An inner edge of the retainer ring protrudes into the socket to form a stopper section. When the socket is fitted onto the screwed member, the retainer ring serves to stop the screwed member from slipping out of the socket. Also, the retainer ring can be resiliently outward stretched from the annular groove to make the screwed member fitted into the retainer ring and held thereby.

Abstract: A bi-directional ratchet wrench is constructed to include a wrench body having a box at one end, an annular ratchet wheel mounted in the box of the wrench body, a toothed stop member mounted in the box and meshed with the ratchet wheel, the ratchet wheel having an inside locating groove extended around an inside wall thereof and dividing the axially extended center through hole thereof into two coupling portions adapted for selectively coupling to the workpiece to be rotated, and a baffle plate axially slidably mounted in the inside locating groove of the ratchet wheel and adapted for holding down the workpiece to be rotated.

Abstract: A double-ended wrench is described having an elongated handle formed substantially nontwisted extending in a longitudinal direction, a first wrench head positioned at one end of the wrench and a second wrench head positioned at the other end thereof. Each wrench head has an orifice with an imaginary axis of wrench rotation. The first wrench head is positioned relative to the second wrench head whereas the axis of wrench rotation of the first wrench head is substantially perpendicular to the axis of wrench rotation of the second wrench head. The elongated handle comprises a first handle portion connecting to the first wrench head, and a second handle portion connecting to the second wrench head. Each handle portion has an elongated cross-sectional shape when viewed in a cross-sectional plane perpendicular to the longitudinal direction.

Abstract: A ratchet wheel mounting arrangement is constructed to include a wrench body with a box head, and a ratchet wheel mounted in the receiving open chamber defined within the box head of the wrench body, the wrench body having a stepped annular bottom flange fitting one side of the ratchet wrench and adapted to hold down the nut to be rotated.

Abstract: The eccentric drive socket is a one piece socket member with a drive lever having a square hole placed off center to the socket member body. The socket member body has a though hole allowing the fastener to pass through. The relationship between the socket member body and the drive lever allow this tool to fit down inside and to be rotated in obstructed or confined areas.

Abstract: A device includes a body having a plurality of alternating drive regions and corner regions arranged about a central axis for cooperation to define a socket recess having an open outer end and an inner end. Each drive region has a drive surface disposed thereon and confined thereto. At least one drive surface slopes toward the central axis in a first direction generally parallel to the central axis and in a second direction generally traverse to the central axis. The device may be a rotatably driveable device for driving fasteners and the like, wherein the axis is the axis of rotation. The device can be used for retaining and driving a drive member. In one form, a drive member, comprising alternating flats and corners is inserted into the device. The flats of the drive member frictionally engage with at least two of the drive regions, thereby releaseably retaining the drive member in the body. The drive member can be rotated by rotating the body in one of the clockwise and counter-clockwise directions.

Abstract: Wrench capable of preventing a screwed member from slipping out and holding the screwed member. One end of the wrench has a head section formed with a polygonal socket. Multiple teeth are formed on the circumference of the socket for engaging with the screwed member. An annular groove is formed in the head section and a resiliently stretchable retainer ring is disposed in the annular groove. An inner edge of the retainer ring protrudes into the socket to form a stopper section. When the socket is fitted onto the screwed member, the retainer ring serves to stop the screwed member from slipping out of the socket. Also, the retainer ring can be resiliently outward stretched from the annular groove to make the screwed member fitted into the retainer ring and held thereby.

Abstract: A tool is adapted for rotating a threaded fastener having a plurality of circumferentially arranged flat areas separated by respective points. The tool includes a handle having first and second opposing ends. At least one of the first and second ends is a working end having an inner and outer perimeter. The inner perimeter defines a fastener-receiving opening adapted for receiving the threaded fastener. The outer perimeter defines at least one clip-receiving groove. The groove is adapted for receiving a portion of a locking clip located adjacent the fastener. The tool is applicable for rotating the fastener only when the portion of the locking clip is received within the groove. A plurality of cam surfaces are formed with the inner perimeter at the fastener-receiving opening, and are adapted for operatively engaging respective flat areas of the threaded fastener. A plurality of point pockets are formed between respective cam surfaces.

Abstract: A tool is adapted for rotating a threaded fastener having a plurality of circumferentially arranged flat areas separated by respective points. The tool includes a handle having first and second opposing ends. At least one of the first and second ends defines a fastener-receiving opening. A plurality of cam surfaces are formed at the fastener-receiving opening, and are adapted for operatively engaging respective flat areas of the fastener. A plurality of point pockets are formed between respective cam surfaces, and are adapted for receiving the points of the fastener to preserve the points when the fastener is rotated by the tool.

Abstract: A deformable wrench for applying torque to a nut engaging a threaded fastener includes a wrench body having a center portion with at least one wing portion extending therefrom. The wrench body is formed from an elastic material and a socket aperture extends through the central portion between spaced upper and lower surfaces thereof. The socket aperture is configured to cooperate with the profile of the nut to permit rotation relative to the fastener by applying force to the wing portion of the wrench. At a predetermined torque value, the walls of the socket aperture deform to permit rotation of the wrench relative to the nut thereby preventing over-torquing the nut on the fastener.

Abstract: A deformable wrench for applying torque to a nut engaging a threaded fastener includes a wrench body having a center portion with at least one wing portion extending therefrom. The wrench body is formed from an elastic material and a socket aperture extends through the central portion between spaced upper and lower surfaces thereof. The socket aperture is configured to cooperate with the profile of the nut to permit rotation relative to the fastener by applying force to the wing portion of the wrench. At a predetermined torque value, the walls of the socket aperture deform to permit rotation of the wrench relative to the nut thereby preventing over-torquing the nut on the fastener.

Abstract: A universal drain tool for use with shower and sink drains is provided. A representative drain tool includes a head containing a shaped aperture configured to engage the lock nuts of common shower and sink drains. The tool includes a handle attached to a head part. The handle allows the user to rotate the head part when the head part is engaged with the shower or sink drain. The head part can include an edge piece configured to insert into the internal lock nut slots of commonly available drop-in shower drains.

Abstract: A universal drain tool for use with shower and sink drains is provided. A representative drain tool includes a head containing a shaped aperture configured to engage the lock nuts of common shower and sink drains. The tool includes a handle attached to a head part. The handle allows the user to rotate the head part when the head part is engaged with the shower or sink drain. The head part can include an edge piece configured to insert into the internal lock nut slots of commonly available drop-in shower drains.

Abstract: Varying sized thru socket attachments with a hand wrench, the wrench having a handle and a head. Each socket attachment has a neck and a receiving shoulder. The neck has an outer perimeter in the shape of a polygon which is coupled with the head of the wrench for a secure fit. A channel extends fully through the attachment through both the neck and shoulder. The size of the channel varies for the different attachment, while the diameter of the neck and the outer wall of the shoulder portion remain constant so as to properly engage the wrench. Thus, the same wrench may be employed with all attachments and used to loosen or tighten any sized nut.

Abstract: A tool for attaching and removing threaded fittings of the type typically used to attach hoses, such as hydraulic hoses, characterized by an extended longitudinal body which is open along a length of the body to accept a hose which has a fitting on it. An adaptor is mounted on an end of the body. The adaptor accepts and rotates a fastener which is part of the hose fitting, such as a six point fastener. The adaptor has an open portion to accept the hose. The opposite end of the body accepts a drive tool, such as a ratchet or a pneumatic wrench.

Abstract: A rotary wrenching tool includes a handle and a head having an opening defined therein for receiving a polygonal head of a fastener. An inner periphery defining the opening includes a plurality of annularly spaced grooves defined therein, wherein each two adjacent grooves are connected by a connecting section. Each connecting section includes a first operative section having an end connected to one of the two adjacent grooves and forming a side of the one of the two adjacent grooves, a second operative section having an end connected to the other of the two adjacent grooves and forming a side of the other of the two adjacent grooves, and an inoperative section interconnected between the first operative section and the second operative section. The first operative sections or the second operative sections engage with the fastener to be wrenched, and each inoperative section does not engage with the fastener to be wrenched. The inoperative section may be rectilinear or convex, i.e.

Abstract: A wrench includes a box end which has an elongated space defined therein and the space is defined by a periphery which includes two long sides and two short sides which are connected between the two long sides. The periphery is composed of two identical portions which are symmetrical about an axis P which passes through a mediate point on one long side and a mediate point on the other second long side. Each portion has three engaging surfaces for contacting three sides of a hexagonal object and three recesses for allowing corners of the hexagonal object being received during rotation of the box end. The box end may tighten or loosen the object without removing the box end from the object by engaging the object with either one of the two identical portions of the periphery.

Abstract: A tool is provided for installing and removing winterizing plugs located in drains, pools, boats, and other systems for providing protection from moisture during the winter season. Such plugs have threaded stems, and are typically secured by wingnuts. These plugs are then removed during warmer weather. In operation, the set screw is loosened to permit removal of the t-bar from the barrel. The t-bar is then inserted into a second transverse bore to serve as a handle for applying torque to selectively tighten and loosen the wingnut and to facilitate pulling the wingnut. The slotted end of the barrel is then slipped over the wingnut. Then, the wingnut can be easily tightened. This technique is also used when removing the plugs. The end of the tool is applied to a threaded portion of a winterizing plug above a wingnut for removal of the plug. The threaded portion of the winterizing plug extends well above the wingnut. The threaded portion of the passage engages the threaded portion of the winterizing plug.

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.

Abstract: A composite box end wrench has a non-metallic body including a handle portion and at least one head portion which defines a fastener-receiving opening therethrough. The wrench includes strengthening and/or retaining structure which strengthens the head portion and can change the failure mode to confine wrench parts in the event of failure. In one embodiment each head portion has a fastener-engaging member insert molded therein along with a reinforcing plate which encircles the member and preferably extends slightly into the handle portion. The reinforcing structure could alternatively be a band extending the length of the wrench and encircling the fastener-engaging member (or members in a double-ended wrench). In a ratcheting version of the wrench the non-metallic body may be split lengthwise into two parts, each of which has reinforcing structure embedded therein, the fastener-engaging member being a ratchet gear which, along with an associated pawl, is disposed between the body parts.

Abstract: A speed wrench includes an open end having a through portion connected to a shank of the wrench and a first jaw and a second jaw respectively extend from the throat portion. The first jaw has a first flat surface defined in an inside thereof and the second jaw has a second flat surface defined in an inside thereof. A throat recess is defined in the throat portion ad a first recess is defined in the inside of the first jaw, and a second recess is defined in the inside of the second jaw. An end of a periphery defining the second recess is connected to the second flat surface and a 60-degree angle recess is connected between the other end of the periphery of the second recess and the throat recess. A first pushing side is connected between the first flat surface and an end of a periphery defining the first recess. A second pushing side is connected between an end of a periphery defining the throat recess and the other end of the periphery defining the first recess.

Abstract: A wrench for use in driving a hexagonal nut having a wrench head. The wrench head has upper and lower jaws rigidly joined together. The jaws have several faces that allow the wrench to engage the nut from three different positions. The faces are configured to prevent corner contact with the nut so as to resist rounding the corners off. Further, one drive position is configured to lock the wrench to the nut as torque is being applied.

Abstract: Ends of several electrical wires are joined by a connector which is twisted onto the wire to a predefined torque level by using a unique tool socket. The connector has a body with closed end and an open end for receiving the electrical wires. At least a portion of the hollow body has an equilateral polygonal cross section shape formed by side surfaces which meet at corner sections. The tool socket includes a coupling through which torque is applied and has an aperture for receiving the connector. The aperture has a cross-sectional shape such that the tool socket engages only the connector corner sections and a space exists between the connector side surfaces and the socket. That engagement concentrates torque applied by the tool socket to the connector which causes the corner sections to round upon application of more than the predefined torque level, thus preventing excessive torque from being applied to the connector and the wires.

Abstract: A tool for quickly removing or replacing threaded fasteners such as nuts or bolts has a spool-like body with an axial bore. A socket in the bore is dimensioned to engage a fastener. A flexible member can be wrapped around a circumferential channel in the body. A user can loosen or tighten A fastener by wrapping the flexible member around the channel and pulling on a pull ring on the free end of the flexible member. The tool is particularly well adapted to removing or tightening nuts or bolts in constricted spaces such are encountered when repairing automotive engines or other machinery. The tool is simple and inexpensive to manufacture. The tool may be provided in a kit having several tools for turning fasteners of several standard sizes.