A hand tool includes a handle, a press member, a shank body and multiple latch assemblies. The handle is formed with a receiving cavity and a locating hole in communication with the receiving cavity. The press member is movably disposed in the locating hole. The shank body is fitted in the receiving cavity and movable relative to the handle. The shank body is formed with multiple sockets. The latch assemblies are respectively mounted in the sockets. When the shank body is moved, (for example, slid or rotated) relative to the handle to make one of the sockets aligned with the locating hole, the latch assembly latches the shank body with the handle. When pressing the press member, the latch assembly unlatches the shank body from the handle, the shank body is movable relative to the handle.

An orthopedic device holder and related kit are disclosed. The orthopedic device holder can include a body portion having a proximal end and a distal end, the body portion defining a bore positioned between the proximal end and the distal end, a plunger portion having a proximal end and a distal end, the plunger portion extending into an opening of the body portion and defining a second bore, and a locking lever that, when activated, is configured to move between a first position and a second position and transition the first bore and the second bore from a locked configuration to an unlocked configuration.

A flex-head tool includes a first portion pivotally coupled to a second portion. A pivot mechanism is engaged with the first and the second portions. The pivot mechanism is movable between a first position in which the first portion is fixedly positioned with respect to the second portion, and a second position in which the first portion is pivotal with relative to the second portion. The pivot mechanism includes a toothed first engaging portion engageable with teeth of pivot holes of the first and the second portions simultaneously and not simultaneously selectively and a second engaging portion connected with a pivot hole and in surface-to-surface contact.

A wrench includes a handle and a working end, two arms extend from the working end to form a room between the two arms. Each arm includes a locking hole. A driving head is pivotably connected between the two arms. Two bolts are respectively and threadedly connected to the locking holes of the two arms, and inserted into the two recesses of the driving head to pivotably position the driving head. A wave washer is mounted to each of the two bolts and sandwiched between the driving head and the arm. The convex portions one side of each wave washer contact the outside of the driving head. The convex portions on other side of each wave washer contact the inside of the arm corresponding thereto. The friction between the driving head and the arms is reduced when the driving head is pivoted relative to the arms.

Expandable spinal implants, systems and methods are disclosed. An expandable spinal implant may include a first endplate, a second endplate, and a moving mechanism that is operably coupled to the first and second endplates. The moving mechanism may include a wedge, a first sliding frame and a second sliding frame disposed on opposite sides of the wedge, a screw guide housing a rotatable first set screw and a rotatable second set screw opposite the first set screw. The first set screw may be operably coupled to the second sliding frame and the second set screw may be operably coupled to the wedge. The moving mechanism may operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws and operably adjust an angle of inclination between the first and second endplates upon translating the first set screw or second set screw.

A dual headed tool having a rotatable arm has a shank with a tool head at each end. The shank slides through a rotatable hub positioned at the distal ends of the tools handle. One half of the shank is inserted into a longitudinal bore extending through the handle while the other half of the shank extends outward so that the tool head at its end may be used. The shank may be slid out of the bore within the handle and rotated to alternate which end of the shank is used. The tour may also be configured without the shank extending into the longitudinal bore in the handle, such that the handle extends away from the shank at an angle between 0° and 180°.

A hand tool is provided, including: a first member; a second member; a shaft, connected with the first member, rotatably inserted to the second member, including positioning slots; and a control member, disposed on the second member, including at least one tooth; wherein the control member can be released by disengagement of the at least one tooth from the positioning slots so that the first and second members are rotatable relative to each other, and the control member can be locked by engagement of the at least one tooth within at least one of the positioning slots so that the first member is non-rotatable relative to the second member; wherein when the at least one tooth is engaged within at least one positioning slot, at least one blocking wall of the tooth is in gapless surface contact with at least one side wall of the slot.

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.

A leverage extending tool is provided. The device includes an elongated body having a first end and a second end. The first end includes a working end. The working end can include a box wrench, an open ended wrench, or a ratchet wrench. The second end includes a socket adapter aperture. The socket adapter aperture is linearly aligned with the elongated body. The socket adapter aperture includes a rectangle opening linearly aligned with the elongated body. The socket adapter aperture further includes smooth inner faces. The socket adapter aperture is adapted to receive a socket wrench or a breaker bar. This allows the user to apply additional torque to the wrench.

A screwdriver device including a handle having an elongate channel extending partially therethrough of the handle and an axial blade member having a first distal end and a second distal end being configured and disposed for sliding through the elongate channel of the handle and a locking mechanism configured and disposed for releasably locking the axial blade member at a first operable position relative to the handle wherein the first distal end is exposed and the second distal end is disposed within the handle. The screwdriver device further includes a first tool head disposed on the first distal end of the blade member and an ejection mechanism configured and disposed within the handle to constantly urge the axial blade member out of the locking mechanism from the first operable position to a second inoperable position.