Disclosed are aspects of exemplars of torque-limiting devices, methods and mechanisms. Exemplary methods may include placing an actuator in a tool containment interface of a handle, the interface being fluidly connected to an adjustment interface and adjustable via a fixation fastener; movably mounting a tool portion with an actuation catch and a work piece engaging region (WER) in the interface; applying sufficient force to the movable mounting to the handle may be via pins, guides and slots. Said catch may be one of a body catch and a lever catch; and, the actuator terminates on one of a ball shaped end that forms an interface with the body catch and a force lever that forms an interface with the lever catch.

A torque structure includes a first body, a second body, a first elastic member, a third body, and a limit unit. The second body is provided with a second receiving chamber, a first pivot portion, at least one first positioning portion and at least one second positioning portion. The first elastic member is received in the second receiving chamber. The third body is provided with a drive portion, a pivot seat, a second pivot portion, and a first limit portion. The limit unit is assembled with the second body and the third body and rotated between a disengaging position where the third body is unlocked from the second body and has a torque slip function relative to the second body, and a engaging position where the third body is locked by the second body and does not have a torque slip function.

A multipurpose and universal wrench for tightening and loosening a fastener, such as a lug nut. The wrench or lug nut wrench can be adapted to lug nuts of varied sizes and shapes. The wrench includes four arms arranged in a cross shape, and three arms are functional while the fourth arm has a torque adjusting handle. Sockets can be interchangeably coupled to the three functional arms. Moreover, the arms are telescoping allowing changing the effective length of the arms. The two opposite functional arms can pivot for collapsing the wrench for storage.

A setting torque tool to tighten a screw or a similar fastener to a target torque is disclosed. The torque tool comprises a main body with a housing and a drive shaft, which is firmly attached to the housing to transfer a torque. The drive shaft has a connection area, to which a drive can be connected. An adapter for an operating tool rotates together with the housing and the drive shaft to transfer the torque, Sensor measure and evaluate the torque transferred. A release mechanism, which is arranged in the housing, releases the torque tool upon reaching a target torque.

A torque limiter can include a housing and a shaft. The housing can include a housing magnet enclosed within the housing. The shaft can be at least partially surrounded by the housing and can be rotatable within the housing. The shaft can include a shaft magnet integrated with the shaft to magnetically couple with the housing magnet to transmit a torque between the housing and the shaft and configured to uncouple from the housing magnet allowing the shaft to rotate within the housing when a threshold torque is reached.

A dustproof structure of a hand tool includes a tool body and a dustproof element. The tool body has a shank. A predetermined portion of the shank is concavely provided with a through hole. The dustproof element is flexible, is provided at the through hole of the shank, and can be opened and closed. The dustproof element closes the through hole when not subjected to an applied force and is elastically deformed to render the through hole into an open state when subjected to the applied force. In normal conditions, therefore, the dustproof element can block foreign matter from entering the through hole. When it is desired to perform a lubricating or adjusting operation on a component in the through hole of the hand tool, the operation can be carried out after directly applying a force to, and thus deforming, the dustproof portion, without having the dustproof element removed.

An adjustable wrench uses colors for identification. The adjustable wrench includes a bit including multiple identification zones and a pointer in addition to a body and a movable jaw. The body includes a stationary jaw extending from a front end. The movable jaw is movably connected to the front end of the body so that a distance between the jaws is adjustable. The identification zones are formed on a side of the body. Each of the identification zones is in a color corresponding to a size of a workpiece. The pointer is formed on a side of the movable jaw. The distance between the jaws is set to be a value corresponding to the size of the workpiece when the pointer is aligned with one of the identification zones.

A torque tool includes multiple bits, a handle, a pointer and a scale ring. Each of the bits includes a colored area. In use, the handle is connected to a selected one of the bits. The handle is operable to set multiple maximum values of torque transferable to the bit from the handle corresponding to the colored areas of the bits. The pointer is formed on the handle. The scale ring includes multiple colored areas corresponding to the colored areas of the bits. The scale ring is rotated around the handle as the handle is operated to set the maximum values of torque, thereby aligning the pointer with one of the colored areas of the scale ring corresponding to the colored area of a selected one of the bits.

An adjustable wrench uses colors for identification. The adjustable wrench includes a bit including multiple identification zones and a pointer in addition to a body and a movable jaw. The body includes a stationary jaw extending from a front end. The movable jaw is movably connected to the front end of the body so that a distance between the jaws is adjustable. The identification zones are formed on a side of the body. Each of the identification zones is in a color corresponding to a size of a workpiece. The pointer is formed on a side of the movable jaw. The distance between the jaws is set to be a value corresponding to the size of the workpiece when the pointer is aligned with one of the identification zones.

A torque screwdriver structure includes a first body assembly, a gauge holder, a second body assembly, a strain gauge, two fasteners, and a third body assembly. The first body assembly includes a first body, a motor, a planetary gear set, a first drive member, and a second drive member. The gauge holder is provided with a first receiving recess and a receiving slot. The second body assembly includes a second body, a display, and an abutting member. The second body is provided with a second receiving recess, a first opening, and a second opening. The strain gauge is mounted in the receiving slot and used to detect a torsion deformation of the gauge holder. The two fasteners secure the gauge holder to the second body. The third body assembly includes a third body, a connecting member, a power supply member, and two switches.