Abstract: A plier wrench is provided and includes a jaw that can be disengaged from the remainder of the wrench and reengaged with the remainder of the wrench while the remainder of the wrench remains in its fully assembled condition. In one form, the jaw is “reversible” and includes two different jaw surfaces that can be selectively utilized depending upon the type of workpiece that will be engaged by the plier wrench.

Abstract: An adjustable nut wrench comprising a handle section and a slide guided element that is pushed by a spring to a position where abutment surfaces are paralleled to two or three nut's sides. A first embodiment of the wrench comprises two paralleled abutment surfaces which set by the angle of maximal 60 degrees to a direction of the sliding element movement. A second embodiment of the wrench has three abutment surfaces located by the angle of 60 degrees to each other and one of them is sliding.

Abstract: An adjustable wrench is provided which provides several advantageous aspects. One aspect of the wrench is to facilitate rapid adjustment of the jaws, which are typically spring biased toward one another. Another aspect is the ability to adjust the jaws according to Metric system measurements or English system measurements or the like. A further aspect is the quick and effective tightening of the jaws.

Abstract: A tool includes a handle, a working device, a positioning device, a clamping device, and a fine adjustment mechanism. The handle includes a pivotal end, a grip end, and a plurality of retaining sections. The working device is pivotally connected to the pivotal end of the handle. The positioning device is moveable between a fixing position and an adjusting position. The clamping device is adjustably positioned on the handle. The fine adjustment mechanism for fine adjusting the clamping device is adjustably positioned on the handle and engaged with the clamping device. The fine adjustment mechanism includes at least one positioning unit alternatively engaged with a selective one of the plurality of retaining sections to fix the clamping device to the handle in position. The clamping device is adapted to be fine adjustably moved through a distance smaller than a pitch between two adjacent retaining sections.

Abstract: A viper crescent wrench device for holding a work piece is provided. Upon squeezing a second handle toward a first handle, a first pawl and a second pawl move an adjusting bar toward the first handle thereby moving a second jaw portion toward a first jaw portion. Upon releasing the second handle, the first pawl and the second pawl releasably lock into place and the second handle readjusts relative to the first pawl thereby repositioning to do the same action again when the second handle is squeezed again until the work piece is secured between the first jaw portion and the second jaw portion. Upon rotation of a release mechanism, toothed notches are rotated out of contact with the first pawl and the second pawl such that the second jaw portion moves away from the first jaw portion under bias of a first spring thereby releasing the work piece.

Abstract: An adjustable wrench is provided which provides several advantageous aspects. One aspect of the wrench is to facilitate rapid adjustment of the jaws, which are typically spring biased toward one another. Another aspect is the ability to adjust the jaws according to Metric system measurements or English system measurements or the like. A further aspect is the quick and effective tightening of the jaws.

Abstract: A fast adjustable spanner comprises a body of which an action side is provided with a protruding stationary jaw of which a bottom is formed with a glide path communicating with an accommodation slot provided in the body; a movable jaw provided with a sheath fringe corresponding to the glide path on which the adjustable jaw may transversally move, a tooth portion being provided at a bottom of the sheath fringe; a working part provided in the accommodation slot to lengthways move, a protruding joint portion being above the working part and having a screw; at least one elastic part between the working part and the accommodation slot, supporting the working part for wedging the screw to the tooth portion of adjustable jaw; thus, when being compressed with an external force, the elastic part is separate from the tooth portion of adjustable jaw for fast adjusting the movable jaw.

Abstract: An adjustable wrench including a head having parallel jaws. The parallel jaws include a first fixed jaw and a movable second jaw. The second jaw is mounted to the head for parallel, sliding movement relative to the first jaw. The wrench also includes a first handle rigidly coupled to the first jaw, and a second handle pivotally mounted to the first handle and coupled to the second jaw. The second handle is coupled to the second jaw such that movement of the handles relative to each other causes the parallel jaws to open and close.

Abstract: An adjustable wrench including a head having parallel jaws. The parallel jaws include a first fixed jaw and a movable second jaw. The second jaw is mounted to the head for parallel, sliding movement relative to the first jaw. The wrench also includes a first handle rigidly coupled to the first jaw, and a second handle pivotally mounted to the first handle and coupled to the second jaw. The second handle is coupled to the second jaw such that movement of the handles relative to each other causes the parallel jaws to open and close.

Abstract: A band seating tool is disclosed. The tool comprises a pair of curved claws for applying force to opposed sides of an orthodontic band. At least one of the claws may be translationally and/or pivotally moveable, such that the separation distance between the claws can be adjusted. Each claw preferably comprises a notch-shaped engagement feature for engaging the band and applying force thereto. The notches may comprise catch ledges for engaging the edges of the band and guide surfaces for engaging the outer surface of the band. In preferred embodiments, the band seating tools according to the invention comprise a bite-receiving member, such that the force associated with a patient's bite can be used to seat the band. The tool may also comprise an elongated safety portion which extends between the claws to protect the patient from injury.

Abstract: A ratchet wrench includes a handle, a ratchet wheel, a plurality of adjusting blocks, and an adjusting shaft. The adjusting shaft is rotatably mounted in the working space of the ratchet wheel and has a toothed disk meshing with the outer thread of each of the adjusting blocks, so that each of the adjusting blocks is rotated by rotation of the adjusting shaft to move into the working space of the ratchet wheel so as to adjust the working size of the working space of the ratchet wheel. Thus, the ratchet wrench can be used to operate workpieces of different sizes and specifications.