An adjustable wrench is disclosed. The adjustable wrench is used for an assembly part. The adjustable wrench includes a frame, an adjustable member, and an engaging element. The adjustable member is adjacent to the frame to form a space between an inner side of the frame, wherein the adjustable member further has a rack. The engaging element is adjacent to the adjustable member and has an engaging portion that meshes with the rack such that, after the adjustable member slides, a position of the engaging portion meshed with the rack is changed so as to change the size of the space; thus, the space can be adjusted to match assembly parts of different specifications.

An adjustable wrench is disclosed. The adjustable wrench is used for an assembly part. The adjustable wrench includes a frame and an adjustable member. An inner side of the frame has a first rack. The adjustable member has a second rack meshed with the first rack. The adjustable member and the frame are meshed with each other by the first rack and the second rack such that the adjustable member forms a first space inside the frame, wherein the adjustable member adjusts a meshing position of the second rack and the first rack to change the size of the first space; thus, the first space can match assembly parts of different specifications.

The present application discloses a clamp and relates to the field of manual tools. A first clamp body and a second clamp body, which are comprised in the clamp, intersect and are fastened by means of a pivot mechanism, form a jaw opening at one end of a pivot mechanism, and have respective handles at the other end of the pivot mechanism. A stop mechanism is disposed at any position on the first clamp body and/or the second clamp body to prevent the two handles of the first clamp body and the second clamp body from further closing. In the clamp of the present application, the stop mechanism is disposed to prevent the handles of the clamp from completely closing when the clamping opening slides or is accidentally detached from a workpiece, thereby protecting a hand from being easily injured.

An auto adjustable spanner hand tool system, adjustable drivetrain tool apparatus with auto adjustable spanner feature, and methods of use are presented. The disclosure provides an interchangeable head system for a spin spanner which automatically engages and disengages a target. The interchangeable head system also activates to spin. The system includes a spring loaded ratchet mechanism which allows the pin to rotate both clockwise and counterclockwise to engage and disengage smoothly. Furthermore, the ratchet assembly is designed to accommodate standard nut dimensions at particular locking points, when needed.

An auto adjustable spanner hand tool system, adjustable drivetrain tool apparatus with auto adjustable spanner feature, and methods of use are presented. The disclosure provides an interchangeable head system for a spin spanner which automatically engages and disengages a target. The interchangeable head system also activates to spin. The system includes a spring loaded ratchet mechanism which allows the pin to rotate both clockwise and counterclockwise to engage and disengage smoothly. Furthermore, the ratchet assembly is designed to accommodate standard nut dimensions at particular locking points, when needed.

An adjustable open end wrench includes a pivot extending through a handle and a first jaw, permitting the first jaw to pivot relative to the handle. A second jaw is pivotably connected to the handle and is slidably connected to the first jaw. An elastic element is disposed between the handle and the second jaw. The second jaw includes a second driving portion facing a first driving portion of the first jaw. The first and second jaws are jointly pivotable relative to the handle between first and second positions. The first and second driving portions are close to each other when the first and second jaws are in the first position. The first and second driving portions are away from each other when the first and second jaws are in the second position. The elastic element is configured to move the second jaw towards the first position.

An adjustable open end wrench includes a pivot extending through a handle and a first jaw, permitting the first jaw to pivot relative to the handle. A second jaw is pivotably connected to the handle and is slidably connected to the first jaw. An elastic element is disposed between the handle and the second jaw. The second jaw includes a second driving portion facing a first driving portion of the first jaw. The first and second jaws are jointly pivotable relative to the handle between first and second positions. The first and second driving portions are close to each other when the first and second jaws are in the first position. The first and second driving portions are away from each other when the first and second jaws are in the second position. The elastic element is configured to move the second jaw towards the first position.

A monkey wrench includes a body, a first jaw, a second jaw and a press member. The second jaw is linearly movable relative to the body. The first and second jaws each have an operation member which has second teeth defied in on side thereof. The second jaw has first teeth on the top thereof and the press member has third teeth. When pivoting the press member to engage the third teeth with the first teeth, the second jaw is secured. A resilient member is connected to the second jaw which is movable when the press member is pivoted in the opposite direction to disengage the third teeth from the first teeth.

A monkey wrench includes a body, a first jaw, a second jaw and a press member. The second jaw is linearly movable relative to the body. The first and second jaws each have an operation member which has second teeth defied in on side thereof. The second jaw has first teeth on the top thereof and the press member has third teeth. When pivoting the press member to engage the third teeth with the first teeth, the second jaw is secured. A resilient member is connected to the second jaw which is movable when the press member is pivoted in the opposite direction to disengage the third teeth from the first teeth.

A tool, such as a ratchet tool, including a head portion having a cavity adapted to at least partially enclose a ratchet gear for providing torque to a working piece. Surfaces of the cavity and/or ratchet gear are provided with a compressive residual stress layer by a cold working process, such as, for example, shot peening.