The wrench includes a first member having a first jaw. The first jaw has at least one first nut member contacting edge. The wrench also has a second member having a second jaw. The second jaw has at least one second nut member contacting edge. The wrench further has a pivot axis at which the first and second members are pivotably coupled to each other, thereby allowing the first and second jaws to be movable between an open position and a closed position, and at least one opening defined by the at least one first nut member contacting edge and the at least one second nut member contacting edge, when the first and second jaws are positioned in the closed positions.

Embodiments of the current invention relate to a pliers wrench. Optionally, the jaws of the pair of pliers lock to an adjustable gap size and/or the gap between the jaws is aligned with a rotational axis of the pair of pliers. For example, there may be two jaws that adjust symmetrically around the rotational axis. In some embodiments, each jaw is closed toward an opposing jaw by a lever. Optionally, a locking mechanism locks the jaw when it reaches half the gap width from the rotational axis. Optionally, each jaw is closable independently of the other jaw. Optionally, a notch in the jaws forms an angle for clasping a bolt perpendicular to an axis of the device. For example, the notch may have a 120 angle.

A crimping tool is provided which includes a movable jaw. The jaw being movable from an open and crimped positions. In an embodiment a linkage is coupled to the jaw and is rotatable about an axle. A member is provided having at least a first and second gear portion, the member pivoting about the linkage and moving relative to the main axle as the jaw moves from the open to the crimped position. A ring gear is coupled to the second gear portion and cooperate therewith to rotate the member about the axle. A drive gear rotates about the axle and cooperates with the first gear portion cooperating to rotate the member relative to the linkage. A handle is pivotally coupled to the axle. A drive pawl is coupled to the handle and rotates the drive gear in response to the handle moving from a first to a second position.

This invention is a set of locking pliers which includes a modular locking system to allow for tool inserts to be secured between the jaws of the pliers.

Pliers are provided. Pliers include an upper handle, a lower handle, an upper jaw coupled to the upper handle, and a lower jaw coupled to the lower handle. In general, the upper jaw includes workpiece engagement surface, such a first set of teeth configured to engage a workpiece, and the lower jaw includes a workpiece engagement surface, such as a second set of teeth and a third set of teeth. The lower jaw opposes the upper jaw such that the first set of teeth faces the second set of teeth and the third set of teeth. At least a section of the workpiece engagement surface of the lower jaw is movably coupled to the lower jaw such that it moves relative to the lower as torque is applied to a workpiece, thereby increasing torque applied to the workpiece.

An adjustable locking pliers includes a stationary handle, a stationary jaw, an operating lever and a movable jaw. The jaw is coupled by an axis which is selectively displaceable to alter the jaws' gripping capacity. The operating lever is coupled to the movable jaw by a first pivot. The lever rear forms a movable handle. A spring biases rotation of the movable jaw about the axis away from the stationary jaw. An actuation rod having a series of teeth and a stop face is coupled to the operating lever by a second pivot part way along the operating lever and coupled to the stationary handle by means of a third pivot. A catch having a series of teeth and a stop face is pivotally coupled to the operating lever. The teeth of the actuation rod and the teeth of the catch are configured to engage each other to permit multiple clamping positions.

Disclosed is a release mechanism for locking pliers. The mechanism includes a center link and release link that work together to form an over-center lock with a release lever that acts sequentially on the center link and release link. The release lever can first contact the center link at a protrusion, and then contact a release link connected to the center link to release the over-center lock. User experience is therefore improved by a sequential unlocking operation that reduces the amount of leverage required to unlock the pliers.

Pliers includes a first holder and a second holder. The first holder includes a first handle and a first jaw securely fixed to an end of the first handle. The second holder includes a second jaw, a first connecting member, a toggle lever, a second handle, and a second connecting member. The second jaw is pivotably mounted to the end of the first handle and faces the first jaw. The first connecting member is pivotably connected to the second jaw. An end of the toggle lever is pivotably connected to the first connecting member. An end of the second handle is pivotably connected to the first connecting member. An end of the second connecting member is pivotably connected to the toggle lever. Another end of the second connecting member is pivotably connected to the second handle.

A jig for clamping that includes two or more clamping aid tools for use and mounting with various common tools, including a carpenter, framing and speed square, and various straight edges for easily and accurately positioning various objects, either flat and/or round, magnetic or not. The clamping aids can clamp to round pipes at correct angles while being fitted, secured and/or welded together.

A pair of universal pliers includes a fixed structure, a movable structure movably connected to the fixed structure and including front and rear movable handle plates, and a quick release mechanism including a trigger and a resilient locking subunit. The resilient locking subunit includes a movable pin inserted through and slidable along a first guide slot of the front movable handle plate and a second guide slot of the rear movable handle plate. The resilient locking subunit is switchable between a locked state where the rear movable handle plate cannot pivot relative to the front movable handle plate and a non-locked state where the rear movable handle plate can pivot relative to the front movable handle plate.