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 inside 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 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 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 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 handle of a hand tool includes two opposite wide surfaces and two opposite narrow sides. The wide surfaces are perpendicular to the rotational direction when using the tool so that the fingers except for the thumb are in contact with the wide surfaces. Each wide surface has a reinforcement protrusion extending perpendicularly therefrom and located close to the driving end of the hand tool. Each reinforcement protrusion includes a thumb area such that the user's thumb may press on the thumb area when rotating the handle.

Abstract: A display device is connected to a head of a wrench including a fixed jaw and a movable jaw. A variable electric resistor is connected to a side of the head and electrically connected to the display device. The movable jaw has a contact member which is movably in contact with the variable electric resistor. The changes of the value of electric resistance of the variable electric resistor is transformed into digitals to show the distance between the fixed jaw and the movable jaw, that is, the size of an object clamped between the fixed jaw and the movable jaw.

Abstract: A socket includes a main body including a first cylinder having an outer periphery formed with a plurality of outer teeth, and a second cylinder having an inner periphery formed with a plurality of inner teeth. The inner teeth of the main body and the outer teeth of the main body have the same tooth number and have the corresponding tooth shape. Thus, the sockets can co-operate with each other to increase the working length, and the sockets co-operating with the ratchet wrench can be used in an elongated shallower space.

Abstract: An electronic torque wrench includes a work section connected to a first end of the handle and having a clamping space so as to accommodate an object to be tightened or loosened. A resistive strain gauge is received in the handle and located at a position within a range from ? to 3/16 of a length from a center of the clamping space to the second end of the handle.

Abstract: An extendable handle device comprises a handle; an upper opening end of the handle having an inner thread; a handle rod having at least one outer thread at an outer wall thereof and a resisting device. When the handle is engaged to the handle rod, the inner thread is used to engage one of the at least one outer thread so as to increase the stability of the engagement; an inner wall of the handle is formed with at least one annular trench; the resisting device can resist against one of the at least one annular trench. The resisting device includes a steel ball and a spring. The outer wall of the handle rod has an upper outer thread and a lower outer thread. The extendable handle device is a spanner with only one handle rod, or the extendable handle device is a damper with two handle rods.

Abstract: A wrench includes two jaws extending from a head on an end of a handle. Each jaw has an inclined surface defined in a first side thereof and the two inclined surfaces share a common plane which is inclined relative to a horizontal plane so that when the first and second inclined surfaces are rested on a surface, the handle is oriented upward and the user can comfortably hold the handle while the object is clamped by the two jaws.

Abstract: A pliers includes two jaws pivotably connected with each other and each jaw has a connection neck including two lugs. Two grips each have a protrusion extending from an end thereof and the protrusion is pivotably between the two lugs of respective one of the two connection necks. Two shafts respectively extend through the lugs of the two connection necks and the protrusions between the lugs. A positioning device is connected between the protrusion and the connection neck so as to position the grip relative to the connection neck.