Abstract: An open-end ratchet wrench includes a gripping handle, an actuating arm, a head base, a ratchet wheel, two ratchet pawls, and a damping member. The head base has an actuating hole, the actuating arm has an offset latch, and the actuating hole has an enough margin. The ratchet wheel includes an outer tooth portion, a holding hole, and an opening shaped and sized to match with the gap. Each of the two ratchet pawls comprises a coupling tooth portion for coupling with the outer tooth portion of the ratchet wheel, an escaping area for escaping from the outer tooth portion of the ratchet wheel, and a resilient member to retain a firmly engagement between the coupling tooth portion and the outer tooth portion, so that the actuating arm drives the ratchet wheel to apply a single direction rotating force.

Abstract: An adjustable wrench includes a fixed jaw, a movable jaw slidably disposed in the fixed jaw, a movable member disposed in the fixed jaw for driving the movable jaw to move, a handle pivoted on the fixed jaw for being pivoted back and forth relative to the fixed jaw, a stop pin and a switch post. The stop pin and the switch post are disposed on the handle, which allows the stop pin to move to a first position where the stop pin keeps the movable member from moving along an axial direction and a second position where the stop pin allows the movable member to move along the axial direction. The switch post is provided to control the movement of the handle. The adjustable wrench has a very small maximum clamping opening angle for turning the handle away from the fixed jaw when reversely operating the adjustable wrench.

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 ratchet wrench includes first recess in the function end thereof and a second recess is defined in the inside of the first recess. A ratchet wheel is located in the first recess, and a pawl and a resilient member are located in the second recess. The resilient member is connected between the pawl and the inside of the second recess. The resilient member biases the pawl to be engaged with the ratchet wheel. A C-shaped restriction member is engaged with the first recess and has a rod which is inserted into the second recess. A space is defined between the inside of the first recess and the rod. The second end of the resilient member is located in the space so as to position the resilient member in the second recess.

Abstract: A well coated wrench includes a metal element, a one-way mechanism and an isolative coating. The metal element includes a tunnel defined therein. The one-way mechanism is substantially located in the tunnel. The one-way mechanism includes a tongue located outside the tunnel and a button located outside the tunnel. The isolative coating is provided on the metal element. The isolative coating includes an external annular ridge located around the button.

Abstract: A device for engaging and rotating a glad hand. The device featuring a receptacle and an adaptor flange. The receptacle shaped to allow a glad hand to be seated therein. The receptacle formed by a base and at least one side wall extending from the base. The adaptor flange axially extending from an exterior surface of the base of the receptacle opposite the at least one side wall, the adaptor flange having a body, a central cavity and a open end opposite the base, the central cavity of the adaptor flange extending longitudinally within at least part of the body from the open end.

Abstract: A ratchet wrench includes a head having a compartment rotatably receiving a drive member. Two gaps are defined between the head and the drive member. The drive member includes a dust groove intermediate the gaps along an axis. The dust groove includes first and second faces spaced along the axis and a third face extending between the first and second faces. A dustproof seal is compressed and received in the dust groove to block communication between the gaps. The seal includes a ring having first and second surfaces spaced along the axis. An outer periphery of the seal presses against a peripheral wall of the compartment. A wing extends from one of the first and second surfaces of the ring, presses against one of the first and second faces of the dust groove, and is not in contact with the third face of the dust groove.

Abstract: A foldable hand tool has a handle and a tool's driving head. The tool is mainly characterized by that, the handle is provided with a driving head guide groove, which is extended along the handle and set correspondingly with the handle's long guide hole. The driving head guide groove penetrates one side of the handle. A combined lug is protruded from the assembly end of the tool's driving head, and fitted slidably with the driving head guide groove of the handle. When the tool's driving head swings perpendicular to the handle, it can slide along the driving head guide groove. With the arrangement of said driving head guide groove, the hand tool can be configured into a straight or T-shaped pattern, thus improving the ease-of-operation and flexibility to meet the customer demands with higher applicability.

Abstract: A universal ratcheting tool provides improved handling of tools that are difficult to use on their own, specifically, hexagonal wrenches. The universal ratcheting tool includes a handle and a body with a ratcheting mechanism within the handle. The body includes a first aperture for receiving a tool, and the first aperture includes slots to accept a plurality of sizes of tools. The body also includes a second aperture where the tool extends out of the body. A retaining component is coupled with the body to retain the tool and a retaining tab is able to be used to open and close the retaining component. Once the tool is positioned and retained within the universal ratcheting tool, a user is able to easily install or remove an object such as a screw with the benefit of a comfortable handle and the ease of use of the ratcheting mechanism.

Abstract: A socket and ratchet combination includes a socket element and a ratchet device or module. The ratchet device is a self-contained ratchet device module having a housing that houses a ratchet mechanism, and the socket element includes a passageway that is configured to receive the housing of the ratchet device therein. When a drive member of a lever arm is connected to the ratchet device and the lever arm is rotated in a first direction, the ratchet device and the socket element rotate in the first direction to rotatably drive a fastener at least partially received at an end region of the socket element, and when the drive member of the lever arm is connected to the ratchet device and the lever arm is rotated in a second direction, the ratchet device allows the lever arm to rotate in the second direction relative to the socket element.

Abstract: A ratchet wrench having easily assembling structure includes a body, a D-head, a loose ratchet, a heart-shaped spring, a disc and a ring. The body has a head portion. The head portion has a through hole. A plurality of teeth is uniformly defined on the through hole. The D-head is rotatably disposed in the through hole and has a connecting member and a threaded member. The loose ratchet is disposed on the D-head. The heart-shaped spring has a closed tip. The disc is disposed on the head portion. A shouldered hole is opened on the disc. A ring is disposed onto the shouldered hole. The ring is disposed onto the shouldered hole. Under this arrangement, a user engages a tool bit with the connecting member of the present invention to lock a bolt by repeatedly rotating the body of the present invention clockwise/counterclockwise.

Abstract: A ratchet wrench includes a wrench body, a control wheel mounted in the wrench body, a control shaft mounted in the wrench body and having a pressing recess, a drive head movably mounted on the control shaft and having a positioning hole, a positioning ball movably mounted in the positioning hole of the drive head and movable into the pressing recess of the control shaft, and an elastic member biased between the control shaft and the drive head. Thus, when the wrench body is moved toward the socket, the drive head is forced by the socket and moved on the control shaft to align the positioning hole of the drive head with the pressing recess of the control shaft and to retract the positioning ball into the positioning hole of the drive head so that the socket is connected with the drive head.

Abstract: The present invention relates a ratchet wrench which comprises a main body, a ratchet wheel, a pawl, an elastic element and a clip. The main body has a first housing and a second housing. The ratchet wheel is rotatably lodged within the first housing and has a plurality of ratchet teeth. The pawl is confined within the second housing and a plurality of first retaining cogs and curved second retaining cogs are successively arranged on the front side of the pawl. The first and the second retaining cogs are defined to engage with the ratchet teeth. A recess, a first convex surface and a second convex surface are defined on the pawl. The second convex surface abuts against the wall of the second housing. The elastic element pushes the pawl with a particular angle so that the second convex surface is forced to abut against the wall of the second housing and the cogs of the pawl are engaged with the ratchet teeth.

Abstract: In a ratchet wrench body and its manufacturing method, the body comprises a handle and a head, and the head has a through hole, a control compartment, and a slot chamber. The head has a first surface and a second surface, and at least one embedded hole formed between the slot chamber and the first and second surfaces, and each embedded hole is penetrated through one side but not penetrated through the other side, and each embedded hole is smaller than an elastic element and a propping element contained in the slot chamber, and the slot chamber is extended from each embedded hole inwardly towards the slot chamber and formed by the total volume occupied by adjacent intersected surfaces.

Abstract: A ratchet wrench includes a handle including a head including a circular pocket, an internal arcuate recess communicating with the pocket, a circular flange on a lower portion of the pocket, and a C-shaped groove on an upper portion of the pocket, the groove having both ends terminating at the recess; a detent including an arcuate block including an arcuate wing plate extending from one end, and a spring loaded pawl movably seated on the wing plate and besides the arcuate block, the pawl including pawl teeth facing the pocket; a hollow, cylindrical socket rotatably seated on the flange and including external drive teeth on an outer surface, the drive teeth being disengaged from the detent, a toothed drive surface on an inner surface, and a central opening defined by the drive surface; and a split ring mounted on the groove to retain the socket in place.

Abstract: A ratchet tool includes a head and a handle extends from a first end of the head and an extension rod is removably connected to a second end of the head. A connection member is connected to the head and includes a slot in which two blocks are movably received therein. Each block includes a clamping face so as to clamp a thread forming tap therebetween. A cover has a hole defined centrally therethrough and two guide ways are defined through the cover. Two pins are connected to the two blocks and slidably extend through the two guide ways. When rotating the head, the two blocks are moved toward to clamp the thread forming tap which is rotated with the rotation of the head. An adapter is connected the head and located opposite to the connection member. The adapter is connected with socket or bit.

Abstract: The present invention relates a one-direction ratchet wrench, which has a driving head with a first cavity and a second cavity. There are walls located on the top and the bottom portions of the second cavity, and a pin hole is extended from the second cavity to the walls. A ratchet wheel is rotatably mounted in the first cavity, and there is a plurality of ratchet teeth in the outer periphery of the ratchet wheel and a receptacle formed in the middle to receive and drive workpieces. A pawl is located in the second cavity and one of its sides has a plurality of teeth engaged with the ratchet teeth. A pin is inserted in a pin hole for an elastic assembly to hitch on. The elastic assembly has a first elastic element and a second elastic element. One end of the second elastic element links to the pawl and the other end links to the first elastic element. The first elastic element hitches on the pin and one of its ends sticks against the inner wall of the second cavity.

Abstract: A quick-turn wrench includes a driving head with an axle hole. One side of the axle hole has a claw. A ratchet ring is accommodated in the axle hole. One end of the ratchet ring extends outside the axle hole and connects to a wrench handle. The ratchet ring is surrounded by a ratchet part that correspondingly engages the claw. A transmission rod is inserted into the ratchet ring, with one end having a transmission part. A bottom plate is disposed at the bottom of the axle hole. The end surface of the bottom plate facing the axle hole has a sliding groove. A pushing element is disposed in the sliding groove corresponding to the claw. The transmission part of the transmission rod connects to the pushing element. As the transmission rod rotates, the pushing element is driven to push the claw to release the fixing state between the claw and the ratchet ring.

Abstract: This invention relates to a wrench, especially a ratchet wheel wrench. The ratchet wheel wrench includes a wrench head on which a ratchet wheel groove and a crescent groove communicating the ratchet wheel groove are attached, a ratchet wheel is disposed in the ratchet wheel groove, a ratchet tooth support is disposed at one side of in the crescent groove, a spring is disposed at one end of the ratchet tooth support; a reed is disposed at the side in the crescent groove opposite the ratchet tooth support, one end of the reed is mounted in the crescent groove along the inner wall of the crescent groove, a protuberance is disposed at the other side of the reed, the protuberance is disposed in the spring.

Abstract: A ratcheting hand tool, comprising a handle, a first bit holder oriented along the longitudinal axis of said handle, located at one end of said handle, a second bit holder positioned toward the opposite end said first bit holder, said second bit holder positioned within said handle, with the axis of said second bit holder oriented perpendicularly to the longitudinal axis of said handle, said second bit holder further comprising a ratchet mechanism, and a removable tool bit, comprising a shaft that can be securely inserted into, and compatible with, said first and second bit holders. The tool bit can be inserted into a second bit holder in the handle, with the shaft functioning as a torque bar.

Abstract: A ratchet wrench includes a wrench head having a pawl compartment formed between a notch and a chamber of the wrench head, a drive member mounted in the chamber of the wrench head and having a ratchet gear, a pawl slidably received in the pawl compartment of the wrench head for engaging with the ratchet gear and for controlling the driving direction of the drive member by the wrench head, a handle having a pivotal coupling member mounted in the notch of the wrench head, and an actuating member attached to the pivotal coupling member and engaged with the pawl for moving the pawl to either side of the pawl compartment of the wrench head in order to determine the driving direction of the drive member by the wrench head.

Abstract: A hand tool with a bushing includes a receiving space defined in a driving head thereof, a ratchet assembly movably received in the receiving space for adapting to driving a work piece, and a bushing disposed between the ratchet assembly and an inner periphery of the receiving space. The ratchet assembly has an outer configuration substantially corresponding in geometry to the receiving space. When the ratchet assembly is operated, the bushing is able to sustain a wear of the ratchet assembly.

Abstract: A one-way driver includes a handle, a shaft and an engagement unit. The shaft is rotationally inserted through the handle. The engagement unit is used to engage the shaft with the handle when the handle is pivoted in a direction and allow disengagement of the shaft from the handle when the handle is pivoted in an opposite direction.

Abstract: A head portion includes an engaging portion capable of engaging with an engagement portion, a slit formed by cutting a part of a peripheral wall surface of the engaging portion, a protuberance which protrudes inward from the peripheral wall surface of the engaging portion, the protuberance including a slope the height of projection of which gradually increases along the circumference of the peripheral wall and which is oriented in a direction of rotation in a rotating operation, and a stop surface extending in radial directions of the engaging portion. The head portion includes an elastically deformable portion configured to cause at least one of two opposite side portions of the slit to be elastically deformed so that the slit is widened until a preset value is reached by the torque applied from the engaging portion to the engagement portion with the protuberance in mesh with an interlocking portion.

Abstract: A wrench for different-sized nuts includes a handle having an opening at a first end thereof and a slot communicated with the opening, an adjustment screw threadedly inserted into the handle and passing through the slot for adjusting a gap of the slot, a first working head rotatably connected with the first end of the handle in such a way that one of first and second mounting portions of the first working head is selectively positionable in the opening of the first end of the handle, and different-sized first and second ratchet sockets rotatably and respectively mounted with the first and second mounting portions. By means of the adjustment screw, the rotationability of the first working head relative to the first end of the handle can be adjusted.

Abstract: The present invention relates a ratchet wrench which comprises a main body, a ratchet wheel, a pawl, an elastic element and a clip. The main body has a first housing and a second housing. The ratchet wheel is rotatably lodged within the first housing and has a plurality of ratchet teeth. The pawl is confined within the second housing and a plurality of first retaining cogs and curved second retaining cogs are successively arranged on the front side of the pawl. The first and the second retaining cogs are defined to engage with the ratchet teeth. A recess, a first convex surface and a second convex surface are defined on the pawl. The second convex surface abuts against the wall of the second housing. The elastic element pushes the pawl with a particular angle so that the second convex surface is forced to abut against the wall of the second housing and the cogs of the pawl are engaged with the ratchet teeth.

Abstract: A multi-size ratchet socket wrench comprises a ratchet unit disposed between a drive unit and a handle. The drive unit includes multiple forms of different sized engaging ends for driving different sized objects. Through the ratchet unit, the drive unit can rotate around the axial direction of the handle with respect to the handle and offers a ratchet function in the control direction of the user. By such arrangements, the multi-size ratchet socket can be applied in narrow space since it not only has multiple sizes of engaging ends but exerts a ratchet function, thus enhancing convenience in use.

Abstract: A multi-function socket wrench includes a driving head, a handle, a pivot rod, a first elastic limit unit and a second elastic limit unit. The driving head is pivotally connected with the pivot rod. The driving head can be slidably moved on the handle through the pivot rod and the first elastic limit unit. The driving head and the handle are secured through the second elastic limit unit. The handle and the driving head of the multi-function socket wrench can be turned free as the demand of the user to be a T-shaped socket wrench or operated horizontally.

Abstract: An insulated ratchet wrench comprising a body and an insulated coat coated with an outer periphery of the body. The body is divided into a head and a handle and a through hole is defined in the head for mounting a ratchet device. The ratchet device includes a polygonal stub extending therefrom and passing through the insulated coat for connecting to a workpiece. An actuator extends through the insulated coat and the through hole for partially and moved received in the polygonal stub. The insulated coat includes an enlarged portion for coating the head. A recess is defined in the enlarged portion for movably receiving the actuator and a through hole is defined in a bottom of the recess to allow the actuator extending through the insulated coat.

Abstract: An easy assembled ratchet wrench contains a body including a head portion disposed on at least one end thereof, the head portion including a first chamber and a second chamber, the first chamber including a recess; a ratchet member received in the first chamber and including plural first teeth and at least one tool end; an engaging member placed in the second chamber and including plural second teeth; a direction controlling member inserted into the engaging member to push the engaging member and including a contacting face; a fitting member fixed in the first chamber and including the guiding face so that the guiding face guides the direction controlling member to displace horizontally and including an indent fixed on an outer wall thereof; a C-shaped retainer retained in the indent of the fitting member and the recess of the body to position the fitting member.

Abstract: A ratchet bit driving tool includes a hexagonal tool driving shaft with planar faces and vertices between the faces; a handle drive sleeve with a cylindrical inner bore and adapted for attachment to a handle; and a roller bearing ratchet clutch with an annular roller bearing cage between the tool driving shaft and handle drive sleeve which is adapted to selectively engage the tool driving shaft on rotation of the handle drive sleeve. The roller bearing cage includes at least three roller bearing apertures in separated by at least three resilient locator bars with a substantially cylindrical roller bearing resiliently retained in each aperture between a face of the tool driving shaft and the handle sleeve by the locator bars. The roller bearing cage additionally includes at least three inwardly facing resilient position indexing notches operable to engage with a vertex of the tool driving shaft.

Abstract: A low profile ratchet wrench incorporates a ratchet gear drive having a female section of a socket or tool drive interface. The socket incorporates a male section for attaching the socket to a ratchet drive head section. By utilizing a female section of the interface in the wrench, the projected height of the socket is reduced as compared to a standard socket. An optional female section can be a cavity provided within the male section of the socket or other tool, allowing the tool to be used on both a standard wrench and a low profile wrench. A snap ring is disposed within a recession about an engaging end of the male section. The snap ring rests against a chamfer in a peripheral edge of the female drive tool interface securing the socket with the gear. Accessories can include attaching section style adapters, size adjusting adapters, extensions, universal joints, and wobble features.

Abstract: A standard mechanic's ratchet modified with a square-receiving hole at the bottom of the handle receives the square drive of a second ratchet to provide additional leverage for the removal of nuts and bolts. Existing mechanics ratchets do not have a hole to accept the square drive of a second ratchet. The Adrin Leverage Ratchet provides mechanics with additional leverage for the removal of over-tightened nuts and bolts.

Abstract: A one-way ratchet wheel element has engaged and linked driving wheel and driven wheel in a body. The side of the body that connects with the driving wheel has a shifting space. A tooth section is provided on a wedge opposite to the shifting space. When the driven wheel rolls and engages with the tooth section, there is a resistance to the rotation of the driving wheel, forming an engagement state. When the driven wheel is away from the tooth section on the wedge, it is in the idle state.

Abstract: A wrench, comprising: a body, includes a handle having an appropriate shape, a containing groove disposed at an action end of the body; a ratchet is pivotally coupled to the containing groove of the body; a seal cover is covered onto the body and matched with the shape of the containing groove and the second containing groove of the body; a latch ring is latched to the latch slot of the body and the groove, such that the ratchet is pivotally coupled into the containing groove of the body, and the seal cover is sealed onto the body.

Abstract: A ratchet wrench contains a handle and a head member, wherein the wrench head includes a receiving portion to receive a rotating member and a hole, the hole includes a plurality of teeth arranged around an inner peripheral side thereof, the receiving portion includes a groove disposed on a rear end thereof, the groove includes a through orifice fixed on a bottom end thereof, the through orifice includes a wider recess formed on a bottom end thereof; a limiting device secured in the through orifice and includes a retaining block fixed in the groove, and the retaining block includes a post extending downward from a bottom end thereof, the post includes a notch disposed on a middle section thereof to receive a spring, and the spring includes a sleeve fitted thereon, the post includes an annular slot formed adjacent to a bottom end thereof to retain with a C-shaped retainer.

Abstract: Disclosed is a surgical screwdriver providing a secure fit for a fastener for use in inserting the fastener into a patient. The device creates negative pressure within the tip of the surgical screwdriver for holding the fastener in place. Negative pressure is created by drawing air through a nozzle at the tip of the device. Air is pulled through the device and out the proximal end of the device's handle via suction tubing connected to the suction attachment of the proximal end of the handle.

Abstract: A combination open-ended ratcheting wrench with a box-end wrench has a wrench having a wrench head, the wrench head having a first aperture with a first opening, a receptacle formed at an inner wall of the first aperture, at least one limiting groove disposed around the inner wall of the first aperture; a control member pushing against an elastic member acceptable in the receptacle and having a ratcheting surface and a smooth surface, and at least one stopping edge corresponding to and accepting the limiting members; a ratchet disposed in the first aperture and having a ratcheting aperture, the ratcheting aperture having a ratchet opening, a ratcheting pawl formed around an outer circumference of the ratchet and corresponding to the ratcheting surface of the control member; and a rotation cap disposed on the wrench head covering a portion of the ratchet in the first aperture and having a second opening.

Abstract: A dual-drive self-ratcheting device, that eliminates the unproductive ratcheting-up motion between each productive drive, by employing a plurality of ratcheting or clutching mechanisms arranged in tandem, on a common drive shaft, that are caused to alternately drive the shaft continuously in one direction, as oscillatory motion is applied to its input. While the first ratcheting/clutching mechanism is caused to impart motion onto a drive-shaft, the second ratcheting/clutching mechanism is simultaneously caused to override the driveshaft. While the second ratcheting/clutching mechanism is caused to impart motion onto a drive-shaft, the first ratcheting/clutching mechanism is simultaneously caused to override the driveshaft.

Abstract: A socket wrench device having multiple adjustable fastener engagement tool ends. A pair of ratchet engagement heads are pivotally secured in respective rotational and supportive orientation with extending handles pivoted together at their free ends to afford multiple socket engagement orientation by compound pivot and socket rotation within a single hand tool configuration.

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 ratcheting wrench having ratchet structure, a ratchet body, a socket wheel, a plurality of ratchet teeth and at least one pawl. The ratchet body is received into the ratchet structure and is rotatable about a first axis. The socket wheel is received in an aperture in the ratchet body and includes a plurality of tool members that are spaced circumferentially apart from one another about a second axis that intersects the first axis but is not coincident with the first axis. The ratchet teeth and the at least one pawl cooperate to control relative rotation between the ratchet structure and the ratchet body about the first axis.

Abstract: A multi-functional jaw wrench combined with self adjusting socket is provided. The multi-functional jaw wrench is comprised of one fixed jaw and one movable jaw at the first end of the handle and a self-adjustable socket that is rotatably attached on the second end of the handle. The self-adjustable socket comprises of many small diameter pins arranged inside of a bore surrounding a six phased rod placed at the center of the bore. The self-adjustable socket is rotatably engaged to a circular gears developed inside of a hole of a socket receiver that is developed on the second end of the handle via a socket head section. Another embodiment of the current invention of the self-adjustable socket receiver can be folded ±90 degrees to align the socket with the handle and enables a user reach a bolts located inside of a structure.

Abstract: A ratcheting mechanism includes a main body formed with a cylindrical seat and adapted to receive pawls rotatably urged outward by a biasing element to selectively engage ratcheting teeth. An adjusting ring is positioned over the main body. The position of the adjusting ring determines the operational direction by selectively disengaging one of the pawls. The main body has an engagement end fixing the ratcheting mechanism to a handle body.

Abstract: A tool for linesmen who work on high powered electrical installations. The tool is constructed of a single handle at one end and a integral forked end at the other end. The forked end receives a ratchet mechanism with two outwardly placed sockets. The handle and the integral forked end is manufactured of an electrical insulating and hardened material.

Abstract: A ratchet wrench includes a head rotatably receiving a drive member. The head includes an end wall having a hole. One of an inner face of the end wall and an end face of the drive member defines a first abutment face. The other of the inner face and the end face includes an annular groove having a bottom wall defining a second abutment face. A dustproof ring is mounted and compressed in the annular groove. The dustproof ring in an uncompressed state has a natural maximum height along a rotating axis of the drive member larger then a spacing between the first and second abutment faces. The dustproof ring includes three sealing units along a radial direction perpendicular to the rotating axis. Each sealing unit has a thickness along the rotating axis smaller than the spacing.

Abstract: A hand tool is disclosed. The hand tool has a gripping portion and a distal end with an attachment end disposed thereon. A ratcheting mechanism is combined with the attachment end to provide ratcheting action. A rotatable head is combined with the attachment end and engaged with the ratcheting mechanism. The rotatable head comprises a plurality of sockets and in some embodiments the rotatable head has four sockets of different size spaced thereon.

Abstract: A ratcheting tool including a handle formed with an integral yoke at a first end and a tool head coupled to the yoke at a pivot. The tool head has a toothed hub facing rearwardly of the pivot and into the yoke. A locking spool is rotatably carried in the yoke adjacent the toothed hub. The locking spool has a first face, a second face, and a first tooth extending along both the first face and the second face and engaging the toothed hub. The locking spool is rotatable between a first position in which the first face is adjacent the toothed hub, thereby locking the tool head in a selected angular position with respect to the handle, and a second position in which the second face is adjacent the toothed hub such that the tool head is pivotable about the pivot.

Abstract: A wrench includes a first handle portion, a first wrench head integrally connected with the first handle portion, a second handle portion integrally connected with the first handle portion, and a second wrench head integrally connected with the second handle portion. The second handle portion is twisted about a longitudinal axis of the wrench by a predetermined angle in a range of 75-85 degrees relative to the first handle portion, such that the wrench can offer a comfortable gripping feeling to the user by the aforesaid ergonomic twisted handle design.

Abstract: A ratchet wheel includes an inner periphery and an outer periphery. The outer periphery includes a number of arcuate concave teeth each having two sides and an intersection of the two sides. The ratchet wheel includes a center, a line from the center to the intersection dividing an angle between the two sides into two unequal portions, thereby forming asymmetric arcuate concave teeth to provide improved structural strength and improved torque. In another embodiment, the concave teeth are non-arcuate to reduce the formation time for the teeth, thereby reducing the production cost.