A torque wrench is disclosed for use in rotating a range of different sized fasteners. The torque wrench may include an input end configured to receive a torsional input, and a gear train operatively driven to rotate by the torsional input. The torque wrench may further include a driver connected to the gear train at an output end and having an axial end surface with a plurality of arcuate slots formed in the axial end surface, and a plurality of clamps each pinned to a corresponding one of the plurality of arcuate slots and moveable by rotation of the driver to radially engage a range of different sized fasteners. The torque wrench may additionally include a housing configured to enclose the gear train, the driver, and the plurality of clamps.

A tool has a body with an axially extending cavity containing partly cylindrical receptacles. Each receptacle has an opening facing inward toward the axis. A partly cylindrical cam portion of a jaw fits within each of the receptacles. Each jaw has a workpiece engaging portion protruding from the body. Each of the cam portions has a pair of flat flanks that protrude inward from the opening of one of the receptacles. The flat flanks intersect each other at an inner corner. Each flank abuts one of the flanks of another of the cam members. Each of the engaging portions has an outer surface configured to engage a hole within the workpiece. An increment of rotation of the body relative to the jaws causes the inner corners of the flanks to move outward from the axis and the outer surfaces of the engaging portions to move from a contracted position to an expanded position.

An adjustable socket including a housing designed on a longitudinal axis, with a series of grooves extending longitudinally along the interior wall. A disc with drive channels intruding obliquely off-center from the perimeter is locked into position within the housing. Jaw members with drive rods are mounted in the disc drive channels, free to move laterally along fixed paths. An axially rotatable drive core with a drive surface is positioned within the housing, engaging the drive rod of each jaw. Rotation of the drive core forces the jaws to travel inwardly along the disc drive channels as dictated by the drive elements of the drive surface, to be forced against a fastener within the jaws. A locking mechanism holds the jaws in position on the fastener. Release of the locking mechanism allows rotation of the drive core in the opposite direction to release the fastener.

An adjustable socket including a housing designed on a longitudinal axis, with a series of grooves extending longitudinally along the interior wall. A disc with drive channels intruding obliquely off-center from the perimeter is locked into position within the housing. Jaw members with drive rods are mounted in the disc drive channels, free to move laterally along fixed paths. An axially rotatable drive core with a drive surface is positioned within the housing, engaging the drive rod of each jaw. Rotation of the drive core forces the jaws to travel inwardly along the disc drive channels as dictated by the drive elements of the drive surface, to be forced against a fastener within the jaws. A locking mechanism holds the jaws in position on the fastener. Release of the locking mechanism allows rotation of the drive core in the opposite direction to release the fastener.

A screwing tool includes a head, which has a fixed jaw and a movable jaw and which is fastened to a handle so as to be pivotable about a pivot axis against a restoring force from a small distance position of the two jaws into a large distance position of the two jaws. In order to be able to touch live parts by means of a screwing tool of this type, the handle has an insulating casing and an actuating element is provided, which can be displaced relative with respect to the handle and which, during its displacement, displaces the head from the small distance position into the large distance position.

A screwing tool includes a head, which has a fixed jaw and a movable jaw and which is fastened to a handle so as to be pivotable about a pivot axis against a restoring force from a small distance position of the two jaws into a large distance position of the two jaws. In order to be able to touch live parts by means of a screwing tool of this type, the handle has an insulating casing and an actuating element is provided, which can be displaced relative with respect to the handle and which, during its displacement, displaces the head from the small distance position into the large distance position.

An adjustable gripping tool including an adjustable opening to grip and impart work or a rotational force on work pieces (e.g., nuts and bolts) of various sizes is provided. The gripping tool of the present disclosure includes a ratcheting configuration and an adjusting configuration and can change between each configuration. While in the adjusting configuration, an adjusting bolt may be rotated to cause a plurality of jaws or gripping members to converge toward each other or diverge away from each other to adjust the diameter of the opening of the gripping tool. In this way, the plurality of jaws may converge onto work pieces of various sizes to grip the work pieces securely in the opening. The gripping tool may then be changed to the ratcheting configuration. In the ratcheting configuration, a handle of the gripping tool may be gripped and rotated to impart work on the work piece.

An adjustable gripping tool including an adjustable opening to grip and impart work or a rotational force on work pieces (e.g., nuts and bolts) of various sizes is provided. The gripping tool of the present disclosure includes a ratcheting configuration and an adjusting configuration and can change between each configuration. While in the adjusting configuration, an adjusting bolt may be rotated to cause a plurality of jaws or gripping members to converge toward each other or diverge away from each other to adjust the diameter of the opening of the gripping tool. In this way, the plurality of jaws may converge onto work pieces of various sizes to grip the work pieces securely in the opening. The gripping tool may then be changed to the ratcheting configuration. In the ratcheting configuration, a handle of the gripping tool may be gripped and rotated to impart work on the work piece.

Various embodiments of a hand tool shown a wrench are provided. The wrench includes an adjustable head that allows for use within small spaces such as around plumbing fixtures. Various embodiments include a head with a fixed jaw and a moveable jaw such that a position of the moveable jaw relative to the fixed jaw is adjustable when the adjustment mechanism is actuated. In a specific embodiment, the adjustment mechanism allows a user to change the position of the head with one hand and/or a thumb.

Various embodiments of a hand tool shown a wrench are provided. The wrench includes an adjustable head that allows for use within small spaces such as around plumbing fixtures. Various embodiments include a head with a fixed jaw and a moveable jaw such that a position of the moveable jaw relative to the fixed jaw is adjustable when the adjustment mechanism is actuated. In a specific embodiment, the adjustment mechanism allows a user to change the position of the head with one hand and/or a thumb.