A hinge structure of a hand tool includes a first connector having a first connecting portion; a second connector having a second connecting portion; and a shaft having one end formed of a stopping portion protruded therefrom and another end having a locking slot formed thereon. The locking slot includes a locking member elastically locked thereon. The shaft penetrates through the first connecting portion and the second connecting portion. In addition, the locking member is locked inside the locking slot, such that the locking member and the stopping portion are locked at the outer side of the first connecting portion and the second connecting portion. Accordingly, the engagement area between the shaft and the first connector and the second connector is able to provide a greater strength.

A torque wrench includes a first part, a second part, a first spring, a block and a second spring. The first part includes a first section and a second. An axial passage is defined through the first part and a second part is received in the passage. The first part and the second part are connected to each other. The first spring is securely located in the second section. A pushing member is located in the first spring and includes a second contact portion. The block is removably in contact between the first and second contact portions. A second spring is mounted to the pushing member. The block is disengaged from the first and second contact portions when the torque wrench rotates clockwise or counter clockwise.

A ratchet wrench may include a main body and a quick release member. The main body has a driving end, and a tool hole vertically penetrates therethrough. A housing concavely formed on an inner wall of the tool hole, and a teeth section is installed in the housing. A ratchet wheel is installed into the tool hole, and an outer periphery of the ratchet wheel is adapted to engage with the teeth section so as to enable the ratchet wheel and the tool hole to have synchronous rotation. A driving hole axially penetrates through the ratchet wheel. The quick release member has a magnetic ring, a pressing member, and a cover. The pressing member is adapted to move relative to the driving hole and the magnetic ring, such that a sleeve can be easily coupled in or detected from the driving hole so as to achieve the quick release effect.

A ratcheting wrench includes a body receiving a driving element, two catches, and at least one catch holder. The two catches and the at least one catch holder are biasingly connected by two position-restoring elements. The driving element is provided with ratchet teeth and the two catches have tooth portions engagable with the ratchet teeth. The tooth portion of one of the two catches is ahead of or lags behind the tooth portion of another one of the two catches by a half-tooth distance.

A fastener extractor device for removing seized fasteners and aiding in disengaging the extractor device from said seized fastener afterwards. The extractor device includes a shank body, a drive head, a torque-tool body, a tubular sleeve, an external thread, and an internal thread. The torque-tool body includes a plurality of laterally-bracing sidewalls and an at least one engagement feature. The engagement feature is integrated into a specific sidewall to bite into a sized fastener. The drive head is terminally and concentrically connected to the shank body to receive an external torque tool. The torque-tool body is terminally and concentrically connected to the shank body, opposite the drive head. The tubular sleeve is slidably engaged along the shank body through the internal thread and the external thread to physically disengaged the torque-tool body from a seized fastener.

A fastener extractor device for removing seized fasteners and aiding in disengaging the extractor device from said seized fastener afterwards. The extractor device includes a shank body, a drive head, a torque-tool body, a tubular sleeve, an external thread, and an internal thread. The torque-tool body includes a plurality of laterally-bracing sidewalls and an at least one engagement feature. The engagement feature is integrated into a specific sidewall to bite into a sized fastener. The drive head is terminally and concentrically connected to the shank body to receive an external torque tool. The torque-tool body is terminally and concentrically connected to the shank body, opposite the drive head. The tubular sleeve is slidably engaged along the shank body through the internal thread and the external thread to physically disengaged the torque-tool body from a seized fastener.

A screwing device for applying and/or transmitting a torque to a screw partner and for interacting with a drive torque generating means, including flat output means (6) which have an output that, can be detachably connected to the screw partner and a drive, to which a drive torque can be manually or mechanically applied, an output gearwheel (8) that can be driven by the fiat output means (6), a mechanical interface (46) for selective direct or indirect connection to the drive torque generating means for initiating the torque, a compensation unit (30) which is designed to store and process compensation data and which comprises an output gearwheel-specific torque curve and/or an output gearwheel-specific efficiency curve for calculating it with a value of an actual output torque in order to generate a value of a compensated output torque, and a data interface (36) which is designed to transmit compensation data to a drive torque generating means.

A pre-assembled female mould arrangement for being installed on a moulding machine, the pre-assembled female mould arrangement comprising: an annular forming element, extending about an axis and delimiting a forming cavity about said axis; a plate element, which delimits the forming cavity transversely to said axis; a peripheral annular component that surrounds at least partially the annular forming element; a supporting base;
a fastening element which is so mounted as to render the annular forming element fixed relative to the plate element.

A pre-assembled female mould arrangement for being installed on a moulding machine, the pre-assembled female mould arrangement comprising: an annular forming element, extending about an axis and delimiting a forming cavity about said axis; a plate element, which delimits the forming cavity transversely to said axis; a peripheral annular component that surrounds at least partially the annular forming element; a supporting base;
a fastening element which is so mounted as to render the annular forming element fixed relative to the plate element.

A wrench assembly, and methods of making and using such a wrench assembly, whereby the wrench assembly includes a head, an opening disposed within the head, a first pivotal member coupled to the head, a plurality of radial slots inwardly extending into the first pivotal member, and a handle, whereby the head pivotally couples to the handle.