Abstract: A pair of self-locking pliers includes three body structures pivotally connected. Each of the three body structure has a slot, and a shaft engages in the slots. The slots cooperate to surround a space and the shaft is constrained in the space. Two of the three body structures include two jaws and are pivotal relative to each other between a first position in which the two jaws are disposed adjacent to each other, and a second position in which the two jaws are disposed apart from each other. The first, second, and third slots are adapted to releasably restrain the shaft, thereby preventing the first, second, and third body structures from pivoting relative to each other.

Abstract: A pair of locking pliers includes a first grip structure including a first jaw and an adjustment screw connected to a first handle. A second grip structure cooperates with the first grip structure. The second grip includes a second jaw pivotally connected to the first handle about a first pivot axis and a second handle pivotally connected to the second jaw about a second pivot axis. A lock mechanism is pivotally connected to the second handle about a third pivot axis. The lock mechanism abuts the adjustment screw which restrains the lock mechanism to the first handle. The second handle extends longitudinally and terminates at an end at a first length from the second pivot axis. A second length measures a distance between the second and third pivot axes. The second length is smaller than 0.19 times of the first length.

Abstract: A pair of locking pliers includes a fixed handle, a fixed jaw fixedly connected to the fixed handle and including a first edge with a plurality of asymmetrical first teeth extending therefrom and a second edge, a movable jaw pivotally connected to the fixed handle and including a third edge and a fourth edge with a plurality of asymmetrical second teeth extending therefrom, and a movable handle pivotally connected to the movable jaw.

Abstract: A clamping device includes first and second clamping members. Each of the first and second clamping members has a handle and a jaw. A bend is formed between two ends of the jaw of the first clamping member, and a first angle between the jaw and the handle of the first clamping member is smaller than 180°. Another bend is formed between two ends of the jaw of the second clamping member, and a second angle between the jaw and the handle of the second clamping member is equal to the first angle. The clamping device can be used to clamp a pipe. When the second clamping member is moving from a release position to the clamping position, two clamping portions respectively of the jaws remain parallel to each other such that force is evenly applied to two sides of the pipe.

Abstract: A clamping device includes first and second clamping members. Each of the first and second clamping members has a handle and a jaw. The handle of the first clamping member includes an inner threaded portion extending along a longitudinal axis and an adjusting screw threadedly engaged with the inner threaded portion. The adjusting screw includes a first end having a disengagement preventing portion located in a sliding section between two ends of the handle of the first clamping member. The adjusting screw further includes a second end located outside of the handle of the first clamping member. The disengagement preventing portion of the handle of the first clamping member has a maximal height perpendicular to the longitudinal axis not smaller than a minimal inner diameter of the inner threaded portion perpendicular to the longitudinal axis. The disengagement preventing portion prevents the adjusting screw from disengaging from the handle.

Abstract: A clamping device includes first and second clamping members. Each of the first and second clamping members has a handle and a jaw. A bend is formed between two ends of the jaw of the first clamping member, and a first angle between the jaw and the handle of the first clamping member is smaller than 180°. Another bend is formed between two ends of the jaw of the second clamping member, and a second angle between the jaw and the handle of the second clamping member is equal to the first angle. The clamping device can be used to clamp a pipe. When the second clamping member is moving from a release position to the clamping position, two clamping portions respectively of the jaws remain parallel to each other such that force is evenly applied to two sides of the pipe.

Abstract: A gripping tool includes a first gripping side and a second gripping side cooperating with the first gripping side. The first gripping side includes a first handle side and a first jaw side fixedly connecting to the first handle side. The second gripping side includes a second handle side and a second jaw side pivotally connecting to the second handle side. The first handle side receives an adjustor. Upon operation of the adjustor, the spacing between the first and second jaw sides can be changed. The adjustor includes a control. The mid section of the first handle side has a largest width defining a first width. The control has a largest width defining a second width. The second width is smaller than the first width. The control includes a hole, and an external tool can engage in the hole to facilitate the operation of adjustor.

Abstract: A pair of hose clamp pliers for clamping a hose is provided with two clamping plates. The pliers include two clamping ends capable of moving toward or away from each other. The two clamping plates are fixedly connected to the two clamping ends and provided with movement guide protrusions and movement stop protrusions. With the protrusions formed along the periphery of the two clamping plates and the gaps defined by the protrusions, the hose clamp pliers can clamp the hose clamp in different directions, so that it can be adapted to different work requirements or environments, for example, in a narrow space. Further, the movement guide protrusions and movement stop protrusions restrict the hose clamp in two different directions, so as to improve clamping stability.

Abstract: A pair of locking pliers includes a first grip structure including a first jaw and an adjustment screw connected to a first handle. A second grip structure cooperates with the first grip structure. The second grip includes a second jaw pivotally connected to the first handle about a first pivot axis and a second handle pivotally connected to the second jaw about a second pivot axis. A lock mechanism is pivotally connected to the second handle about a third pivot axis. The lock mechanism abuts the adjustment screw which restrains the lock mechanism to the first handle. The second handle extends longitudinally and terminates at an end at a first length from the second pivot axis. A second length measures a distance between the first and second pivot axes. The second length is smaller than 0.19 times of the first length.

Abstract: A pair of locking pliers includes a fixed jaw including a first clamping surface which has a first edge and a second edge extending rearward of and tilting with respect to the first edge. A plurality of first teeth is asymmetrical and extends from the first edge of the first clamping surface. A movable jaw cooperates with the fixed jaw and includes a second clamping surface which has a first edge and a second edge extending rearward of and tilting with respect to the first edge. a plurality second teeth is asymmetrical and extends from the second edge of the second clamping surface. The pair of locking pliers in a tightening position thereof can grip a work piece firmly with the plurality of first teeth and the plurality of first teeth.

Abstract: A locking pliers locking pliers includes a fixed handle. A fixed jaw is connected to the fixed handle. A movable jaw cooperates with the fixed jaw and includes movable and fixed pivoting regions. A movable handle is pivotally connected to the movable pivoting region. A movable pivot unit includes a pivot pin engaging with the fixed handle and the fixed pivoting region, and a pivot hole disposed in one of the fixed handle and the fixed pivoting region and configured and dimensioned to loosely receive the pivot pin. The pivot hole has a first diametrical size and the pivot pin having a second diametrical size not greater than 0.8 times the first diametrical size. A biasing member engages with the fixed handle and the movable jaw.

Abstract: A locking pliers includes a fixed handle supporting a fixed jaw, a movable jaw, a movable handle pivotally connected to the movable jaw about a pivotal axis, and a movable pivot unit disposed on the fixed handle and the movable jaw. The pivot unit includes a pivot pin and a pivot hole configured to loosely receive the pivot pin such that, when a manual turning force is applied to the movable handle, the movable jaw is turned clockwise to a locking position. As a result of abutting engagement between the pivot pin and a leading region of the pivot hole, a friction force is generated to hold the movable jaw in a tightening position. The gripping force between fixed and movable clamping surfaces of the jaws can be firm and stable.

Abstract: A locking pliers locking pliers includes a fixed handle. A fixed jaw is connected to the fixed handle. A movable jaw cooperates with the fixed jaw and includes movable and fixed pivoting regions. A movable handle is pivotally connected to the movable pivoting region. A movable pivot unit includes a pivot pin engaging with the fixed handle and the fixed pivoting region, and a pivot hole disposed in one of the fixed handle and the fixed pivoting region and configured and dimensioned to loosely receive the pivot pin. The pivot hole has a first diametrical size and the pivot pin having a second diametrical size not greater than 0.8 times the first diametrical size. A biasing member engages with the fixed handle and the movable jaw.