A hand tool provided with a first handle, a second handle, a first working portion, a second working portion and a working portion connecting mechanism. The first handle is fixedly connected to the first working portion, the second handle is pivotably connected to the second working portion, and the second working portion is connected to the first working portion through the working portion connecting mechanism, the second working portion has a first position and a second position, and the working portion connecting mechanism causes the second working portion to be moved from the first position to the second position when the second handle is moved from away from the first handle to closer to the first handle. The first position is the position where the second working portion is located away from the first working portion, and the second working portion is rotated and translated relative to the first working portion when the second working portion is in the second position. The hand tool can provide a greater clamping force, helping to further save labor.

An apparatus for manipulating a wire comprises a first lever and a second lever. The first lever comprises a first tip-support portion, a first handle portion, and a first hinge portion. The second lever comprises a second tip-support portion, a second handle portion, and a second hinge portion. The first hinge portion and the second hinge portion are pivotally interconnected about a lever-pivot axis. The apparatus also comprises means for biasing the first tip-support portion and the second tip-support portion toward each other, a first tip half pivotally coupled to the first tip-support portion, and a second tip half pivotally coupled to the second tip-support portion. The first tip half comprises a first channel. The second tip half comprises a second channel.

An apparatus for manipulating a wire comprises a first lever and a second lever. The first lever comprises a first tip-support portion, a first handle portion, and a first hinge portion. The second lever comprises a second tip-support portion, a second handle portion, and a second hinge portion. The first hinge portion and the second hinge portion are pivotally interconnected about a lever-pivot axis. The apparatus also comprises means for biasing the first tip-support portion and the second tip-support portion toward each other, a first tip half pivotally coupled to the first tip-support portion, and a second tip half pivotally coupled to the second tip-support portion. The first tip half comprises a first channel. The second tip half comprises a second channel.

The crimping tool is disclosed. The crimping tool includes a pair of pliers and a pair of jaws. Each plier includes a headend and a grip end. Each headend includes a first accommodating groove and a first engaging member, where the first engaging member is located on one side of the first accommodating groove. Each grip end includes a second accommodating groove and a second engaging member, where the second engaging member is located on one side of the second accommodating groove. The jaws are detachably mounted to the first accommodating groove or the second accommodating groove of the grip end, and each of the jaws has a junction. When each jaw is mounted to the first accommodating groove or the second accommodating groove, each junction substantially corresponds to the first engaging member or the second engaging member to engage each jaw.

The crimping tool is disclosed. The crimping tool includes a pair of pliers and a pair of jaws. Each plier includes a headend and a grip end. Each headend includes a first accommodating groove and a first engaging member, where the first engaging member is located on one side of the first accommodating groove. Each grip end includes a second accommodating groove and a second engaging member, where the second engaging member is located on one side of the second accommodating groove. The jaws are detachably mounted to the first accommodating groove or the second accommodating groove of the grip end, and each of the jaws has a junction. When each jaw is mounted to the first accommodating groove or the second accommodating groove, each junction substantially corresponds to the first engaging member or the second engaging member to engage each jaw.

Pliers with receiving surfaces formed in the handles of the pliers so as to increase the surface area contact between the pliers and the work piece. The pliers grip the work piece at the jaws of the work piece and at the receiving areas to increase the contact area between the tool and the work piece as compared to conventional adjustable pliers.

Pliers with receiving surfaces formed in the handles of the pliers so as to increase the surface area contact between the pliers and the work piece. The pliers grip the work piece at the jaws of the work piece and at the receiving areas to increase the contact area between the tool and the work piece as compared to conventional adjustable 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.

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.

The invention deals with a holder (22, 23) for holding a replaceable part (1) of a tool, such as a replaceable jaw of pliers, wherein the replaceable part (1) comprises a first locking member (6), and wherein the tool further comprises a handle (3) comprising a second locking member (8), wherein one of the first and second locking members (6, 8) is moveable relative to the other locking member between: an engaged position wherein the second locking member (8) is engaged with the first locking member (6) so as to lock the replaceable part (1) to the handle (3), and a disengaged position wherein the second locking member (8) is disengaged from the first locking member (6) so as to allow the replaceable part (1) and the handle (3) to be separated, wherein the holder (22, 23) comprises a cavity (32) for receiving the replaceable part (1), and an unlocking member (36) adapted to move said one of the first and second locking members (6, 8) from the engaged position to the disengaged position when the replaceable part (1) is received in the cavity (32).