A jaw wrench includes two first bodies, a second body a function end unit and a control unit. The first bodies each have a first toothed hole. The second body has a second toothed hole. The function unit includes a third body and a fourth body pivotably connected to the third body. The third body has a first toothed portion and is connected to the second body. The fourth body has a second toothed portion. An object is clamped between the first and second toothed portions. The control unit has two control members, two second resilient members and two covers. The two control members extend into the two first and second bodies and each have a third toothed hole which is engaged with the first/second toothed hole. When the control members are pushed, the third toothed holes are disengaged from the first toothed hole.

A jaw wrench includes two first bodies, a second body a function end unit and a control unit. The first bodies each have a first toothed hole. The second body has a second toothed hole. The function unit includes a third body and a fourth body pivotably connected to the third body. The third body has a first toothed portion and is connected to the second body. The fourth body has a second toothed portion. An object is clamped between the first and second toothed portions. The control unit has two control members, two second resilient members and two covers. The two control members extend into the two first and second bodies and each have a third toothed hole which is engaged with the first/second toothed hole. When the control members are pushed, the third toothed holes are disengaged from the first toothed hole.

A magazine opener for removing a floor plate of a firearm magazine, wherein the floor plate defines a hole and the magazine defines a side wall, wherein the opener includes: a handle having a first end and a second free end; a first arm pivotally connected with the first end of the handle; a second arm extended from the handle to form an engagement point biased against the side wall; wherein the first arm comprises a L-shaped element inserted into the hole to secure the first arm with the floor plate.

A device for unfastening fasteners includes an operation device, a cable unit and a working unit. The cable unit is connected between the operation device and the working unit. The operation device includes a first part and a second part pivotably connected to each other by a pivot. The first part includes a first extension with a first hole. The second part includes a second extension with a second hole. A first slot communicates with the first hole. A second slot communicates with the second hole. The cable unit includes a cable and a sheath. The cable extends through the first and second holes via the first and second slots, and connected with an end piece which contacts the first extension. A stop member is mounted to the first extension to close the first slot. The cable is separated from the operation device easily without causing damage to the cable.

A tool, a tool system, and method for applying torque to a hammer union. The tool includes a handle attached to a tool head, and the tool head further includes at least two indentations, the indentations having a curved rearward wall and forming a mouth with a first width and a mid-section with a second width, wherein the mid-section width is greater than the mouth width.

A tool, a tool system, and method for applying torque to a hammer union. The tool includes a handle attached to a tool head, and the tool head further includes at least two indentations, the indentations having a curved rearward wall and forming a mouth with a first width and a mid-section with a second width, wherein the mid-section width is greater than the mouth width.

A wrench includes a first part, a second part and a third part. The first part has a first toothed portion and a first pivotal portion. The second part has a third pivotal portion which is connected to the first pivotal portion so that the second part is pivoted an angle relative to the first part about the first pivotal portion. The third part is movably connected to the second part and has a second toothed portion which faces the first toothed portion so that objects of different sizes are clamped between the first and second toothed portions.

A wrench includes a first part, a second part and a third part. The first part has a first toothed portion and a first pivotal portion. The second part has a third pivotal portion which is connected to the first pivotal portion so that the second part is pivoted an angle relative to the first part about the first pivotal portion. The third part is movably connected to the second part and has a second toothed portion which faces the first toothed portion so that objects of different sizes are clamped between the first and second toothed portions.

An open-end wrench is provided. A push head of an operating handle is accommodated in a coupling slot of a jaw. A portion of an inclined guide surface, first and second clamping surfaces and a swing support point normally extend to a jaw opening. When the open-end wrench is used to screw or unscrew a hexagonal screw member, a first entrance guide surface and a second entrance guide surface of the jaw guide a pair of sides of the hexagonal screw member for the hexagonal screw member to enter the jaw opening, and five sides of the hexagonal screw member can be clamped quickly to enhance the convenience for screwing or unscrewing the hexagonal screw member. In addition, the hexagonal screw member won't slide out of the jaw opening during the backswing process of the operating handle so as to screw or unscrew the hexagonal screw member stably.

An open-end wrench is provided. A push head of an operating handle is accommodated in a coupling slot of a jaw. A portion of an inclined guide surface, first and second clamping surfaces and a swing support point normally extend to a jaw opening. When the open-end wrench is used to screw or unscrew a hexagonal screw member, a first entrance guide surface and a second entrance guide surface of the jaw guide a pair of sides of the hexagonal screw member for the hexagonal screw member to enter the jaw opening, and five sides of the hexagonal screw member can be clamped quickly to enhance the convenience for screwing or unscrewing the hexagonal screw member. In addition, the hexagonal screw member won't slide out of the jaw opening during the backswing process of the operating handle so as to screw or unscrew the hexagonal screw member stably.