Abstract: A ratchet control structure comprises a first receiving portion for receiving a ratchet; a second receiving portion for receiving a braking block; and a third receiving portion for receiving a switch unit. The wall of the third receiving portion has a first trench and a second trench. One end of the switch unit in the third receiving portion is formed with a concave portion and a through hole. The concave portion receives one end of a positioning rod. Another end of the positioning rod is received in a sliding trench of the braking block; and a control element is received in the through hole. By moving the switch unit, the positioning rod and control element will control the rotation direction of the ratchet. The conductive wire includes a steel ball, a spring and a top rod.

Abstract: A hand tool includes a work section and a handle section connected to the work section. The handle section has one recess defined in an outer surface thereof so as to receive a spring and a bead. An extendable portion is movably mounted to the handle section and has two dents. The extendable portion is moved relative to the hand portion by receiving the bead in one of the dents so as to have a longer arm of force when using the hand tool.

Abstract: A quick release bit socket assembly includes a socket and a screw bit is removably inserted in a first recess in a first end of the socket. A second recess is defined in a second end of the socket and a passage is in communication between the first and second recesses. A push rod includes a head and a shank which extends through the first recess, the passage and is inserted in the second recess. A spring is mounted to the shank and biased between the head and an inner bottom of the first recess. The screw bit can be quickly pushed out from the second passage by pushing the push rod toward the screw bit.

Abstract: A jaw portion structure of an adjustable spanner comprises an adjustable spanner body including a head portion and a handle; a fixing jaw portion and a sliding trench being extended integrally in the head portion; one side of the fixing jaw portion being formed with a second clamping surface. A movable jaw is installed in the sliding trench; one side of the movable jaw being formed with a first clamping surface corresponding to the second clamping surface; a lower end of the movable jaw being installed with a positioning rod which being positioned to the sliding trench of the head portion. A neck portion is formed between the positioning rod and the movable jaw. One side of the neck portion is formed with an inclined surface connected to the first clamping surface. Each of two sides of the inclined surface is formed with a respective cambered guide surface.

Abstract: A dual function wrench includes two function ends and the two different function ends are overlapped with each other. Each function end includes a clamping space and the two respective clamping spaces are in communicating with each other. The first function end includes two fixed jaws which have two respective flat clamping surfaces facing with each other. The second function end is a quick release function end so as to rotate an object without removing the second function end from the object.

Abstract: A wrench capable of transferring power effectively comprise a wrench body having an end formed with a driving portion; the driving portion being formed with a receiving portion; a ratchet wheel being mounted in the receiving portion of the driving portion and having a periphery formed with a plurality of oblique concave portions; a plurality of rollers movably mounted in the oblique concave portions. When the roller is at a position where one side of the roller is in contact with a periphery of the driving portion and one side of he roller is in contact with a long side of the oblique concave portions, a line tangent to the periphery of the driving portion and passing through the contact point of the roller and the driving portion is inclined to the long side of the oblique concave portions with an angle preferably between 5 degrees to 30 degrees.

Abstract: A ratchet wheel mounting structure comprises a ratchet wheel mounted in a box of a wrench body and meshed with a toothed stop block in said box, and a retainer ring mounted in between said box and said ratchet wheel to secure said ratchet wheel to said box, said ratchet wheel having teeth arranged around the periphery thereof, a locating block at one side of the ratchet wheel, and a locating groove being formed around the periphery of said locating block for positioning said retainer ring. Each tooth of said ratchet wheel is chamfered at one end thereof far away from the locating block; and a reinforcing bevel is provided in the valley between roots of another ends of each two adjacent teeth of said ratchet wheel adjacent to said locating block. Or each tooth is chamfered at two ends and thus no bevel slop is formed.

Abstract: A ratchet wrench includes a wrench body having a drive head formed with a receiving recess, a ratchet wheel rotatably mounted in the receiving recess of the drive head, a positioning member secured in the receiving recess of the drive head and secured on the ratchet wheel to retain the ratchet wheel in the receiving recess of the drive head, and an oil seal secured in the receiving recess of the drive head and enclosed around the positioning member. Thus, the positioning member is a C-shaped snap that can abut and press the oil seal so as to position the oil seal actually, so that the oil seal has a better positioning effect.

Abstract: A slide stop device of a hexagonal spanner serves for preventing a rounded edged inner hexagonal screw to slide as the hexagonal spanner drives the inner hexagonal screw. The slide stop device comprises a spanner body; one end of the spanner body having a driving portion; the driving portion having three axial slots; and a screw hole extending from the tapered hole; a resisting element formed by a screw unit, a tapered resisting unit having a shape corresponding to that of the tapered hole, and a spring. In assembly, the screw unit and the resisting unit are placed in the tapered hole; and the spring is placed between the tapered hole and the resisting unit. The screw unit is screw into the screw hole, while a head of the screw unit resists against the step portion and a part of the resisting element exposes from the tapered hole.

Abstract: A slide stop device of a hexagonal spanner serves for preventing a rounded edged inner hexagonal screw to slide as the hexagonal spanner drives the inner hexagonal screw. The slide stop device comprises a spanner body; one end of the spanner body having a driving portion. The driving portion has at least one axial slot; a screw hole formed along an axial direction of driving portion; a through hole extending from an inner side of the screw hole and being at the same line with the screw hole; a screwing resisting element capable of being screwed into the screw hole; one end of the screwing resisting element having a driving hole so that an opening can be inserted into the cruciform hole to drive the screwing resisting element to rotate. In use, the screwing resisting element is inserted into the screw hole.

Abstract: A slide stop device of a hexagonal spanner comprises a spanner body; one end of the spanner body having a driving portion. The driving portion has at least one axial slots. Each slot is extended from a center of one end surface of the driving portion to an edge of the driving portion. An axial screw hole is formed in the center of driving portion; an outer end of the screw hole being a tapered shape. In use, a screwing resisting element is inserted into the screw hole. When the screwing resisting element is not tightly adhered to an wall of the screw hole, the screwing resisting element can expand the driving portion outwards to prevent the screwing resisting element from sliding.

Abstract: A slide stop device of a hexagonal spanner serves for preventing a rounded edged inner hexagonal screw to slide as the hexagonal spanner drives the inner hexagonal screw. The slide stop device comprises a spanner body; one end of the spanner body having a driving portion; the driving portion having an axial slot extending through a center of one end surface of the driving portion to a lateral side thereof; a screw hole to be normal to one inner surface of the slot; a screwing resisting element having a shape matching the shape of the screw hole; the screwing resisting element serves for enforcing the driving portion to deform. In use, the screwing resisting element is inserted into the screw hole. When the screwing resisting element is inserted to push one surface of the slot, the slot will be expanded so as to expand the driving portion.

Abstract: A ratchet tool includes an engaging wheel rotatably received in a through hole of a head and being in contact with a pawl which is controlled by a control member. The engaging wheel includes first teeth defined in an outer periphery thereof and the pawl includes second teeth which are engaged with the first teeth. The first teeth each have a peak portion and a root portion. The peak portion includes a first reinforcement surface connected between two sides of the first teeth, and the root portion includes a second reinforcement surface connected between respective one of the two sides of the two first teeth between which the root portion is located. The reinforcement surfaces reduce wearing of the first and second teeth and increase the structural strength of the first and second teeth.

Abstract: A unidirectional buckling assembly of a spanner comprise a spanner body having a receiving chamber at one end thereof; a toothless ratchet received a toothless ratchet; the toothless ratchet being received within the receiving chamber; a polygonal outer surface being formed at an outer surface of the toothless ratchet; a directional control groove formed aside the receiving chamber and near a handle of the spanner body; a directional control device received within the directional control groove; the toothless ratchet being buckled to the directional control device; the directional control device being formed by a directional control unit, and an elastomer which are placed in the directional control groove sequentially; a lateral side of the directional control unit protruding in the receiving chamber so as to be buckled to the polygonal outer surface of the toothless ratchet; and the elastomer resisting against the directional control unit.

Abstract: A lamp seat of a hand tool comprises a clamping seat; an upper end of the clamping seat having a clamping portion formed by for posts; a lower side of the cambered surface having a ball shape groove; a receiving seat; a upper side of the cambered surface being protruded with a combining portion; a top of the combining portion having a ball-like shape corresponding to the ball shape groove of the clamping seat; a bottom side of the receiving seat being formed with a first through hole and a second through hole. Thus, the lamp seat can carry a hand tool and a flashlight at the same time. Moreover, a clamping seat of the present invention can rotate with respect to the receiving seat through a wide range.

Abstract: A polygonal member engaging device includes a box end and a handle connected to the box end. The box end has a hole for receiving an engaging ring therein which has a plurality of ridges and grooves defined in an inner periphery thereof a clamping hole of the engaging ring. The ridges and the grooves are alternatively arranged from each other in the inner periphery of the clamping hole and each ridge has an enlarged portion extending radially outward therefrom and a width “W1” between two adjacent enlarged portions of the ridges is smaller than a width “L1” of a bottom of each groove.

Abstract: A spanner comprises a driving head and a second pivotal portion; the driving head having an engaging portion for engaging screws; and the handle being capable of being held, thereby, the user can apply a force thereon. One end of the driving head has a first pivotal portion and one end of the handle has a second pivotal portion. The first pivotal portion and second pivotal portion are pivotally connectable for adjusting a respective orientation between the driving head and the handle. The holding area of the handle is larger than the prior art and thus the user can apply force to the handle easily. Moreover, the orientation of the handle respective the driving head is adjustable.

Abstract: A hand tool includes a retractable shank, a handle, an elastic member, and at least one fixing pin. Thus the rod assembly of the retractable shank can be retracted into and expanded outward from the receiving chamber of the handle so as to adjust the distance between the retractable shank and the handle, so that the working length of the hand tool can be can be easily, rapidly and arbitrarily.

Abstract: A method for manufacturing a twisted handle of a hand tool includes a step of forging the handle, annealing the handle; machining the handle to have a full scale; polishing the handle; twisting the handle by a twisting device; secondary polishing the twisted area of the handle; proceeding a heat treatment to the handle; vibrating the handle to obtain a fine surface of the handle, and electroplating the handle. The twisting device includes a clamping unit to clamp an end of the handle and a rotating unit to hold the handle and rotate 90 degrees.

Abstract: A socket tool includes a handle and a socket is movably mounted to one of two ends of the handle. A groove and a plurality of notches are defined in the outer periphery of the end of the handle. The socket has two passages defined through a wall of the socket and an angel is defined between each one of the passages and a radius of the socket. A positioning pin extends through the wall of the socket and is engaged with the groove of the handle. The two passages are located at two different longitudinal positions from an end of the socket. A bead and a spring are respectively received in each of the passages, and one of the two beads is engaged with one of the notches by moving the socket on the end of the handle. Each of the two beads engaged with the notch decides the direction that the socket drives an object accommodated in the socket.