A device comprising: (a) a first working arm; (b) a shuttle located on the first working arm, and (c) a bias device; wherein the bias device biases the first working arm when the shuttle is in a first position, and wherein the bias device is free of biasing the first working arm when the shuttle is in a second position.

A device comprising: (a) a first working arm; (b) a shuttle located on the first working arm, and (c) a bias device; wherein the bias device biases the first working arm when the shuttle is in a first position, and wherein the bias device is free of biasing the first working arm when the shuttle is in a second position.

A pliers includes a first pliers body (10) and a second pliers body (20). The first pliers body includes a first handle (11) and a first clamp (12). A first pliers knife (13) and a first pliers back (14) are disposed on the first clamp (12). The second pliers body (20) includes a second handle (21) and a second clamp (22). A second pliers knife (23) and a second pliers back (24) are disposed on the second clamp (22). The second clamp (22) is pivotally connected with the first clamp (12) to clamp or cut. The first pliers back (14) or the second pliers back (24) is provided with a chipping blade (50) configured in a concave arc shape for chipping.

A pliers includes a first pliers body (10) and a second pliers body (20). The first pliers body includes a first handle (11) and a first clamp (12). A first pliers knife (13) and a first pliers back (14) are disposed on the first clamp (12). The second pliers body (20) includes a second handle (21) and a second clamp (22). A second pliers knife (23) and a second pliers back (24) are disposed on the second clamp (22). The second clamp (22) is pivotally connected with the first clamp (12) to clamp or cut. The first pliers back (14) or the second pliers back (24) is provided with a chipping blade (50) configured in a concave arc shape for chipping.

Crimping pliers include a clamping assembly including a left jaw and a right jaw, a control mechanism, and a rotating button mechanism. The left jaw includes a left connecting portion and a left head. The right jaw includes a right connecting portion and a right head. The control mechanism drives the clamping assembly to switch between a clamping state and an open state. The rotating button mechanism includes a first connecting plate connected to the right connecting portion, an eccentric shaft, a rotating button connected to the eccentric shaft, and a limiting structure connected to the rotating button to limit a rotating range of the rotating button. The first connecting plate is rotatably connected to the left connecting portion through the eccentric shaft. The rotating button adjusts a distance between the left connecting portion and the right connecting portion by driving the eccentric shaft to eccentrically rotate.

A press cutting tool is disclosed. The press cutting tool includes a first and second plier, a first and second connecting rod, an opening, a pressing block, and a cutting block. The first and second connecting rods are connected to the second plier. The opening is used for placing a connection head. The pressing block is connected to the first connecting rod for clamping housing. The cutting block is connected to the second connecting rod for cutting the connection line; wherein the pressing block and the cutting block slide separately, and an initial distance from the pressing block to the opening is greater than an initial distance from the cutting block to the opening. After the first and second plier are pressed, the pressing block slides first to clamp and press the housing, and then the cutting block slides to cut the connection line.

A press cutting tool is disclosed. The press cutting tool includes a first and second plier, a first and second connecting rod, an opening, a pressing block, and a cutting block. The first and second connecting rods are connected to the second plier. The opening is used for placing a connection head. The pressing block is connected to the first connecting rod for clamping housing. The cutting block is connected to the second connecting rod for cutting the connection line; wherein the pressing block and the cutting block slide separately, and an initial distance from the pressing block to the opening is greater than an initial distance from the cutting block to the opening. After the first and second plier are pressed, the pressing block slides first to clamp and press the housing, and then the cutting block slides to cut the connection line.

A spring clamp for assembly fixturing includes a retainer that limits a minimum distance between jaws of the spring clamp when the spring clamp is in a relaxed state.

A spring clamp for assembly fixturing includes a retainer that limits a minimum distance between jaws of the spring clamp when the spring clamp is in a relaxed state.

A fastener structure for pliers contains: a first connecting arm, a second connecting arm, and a slidable fastener. The first connecting arm is rotatably connected with the second connecting arm to form a griping segment and a working segment and includes a holder which has two guiding rails. The first connecting arm also includes a first notch and a second notch, and the second connecting arm includes a locking seat. The slidable fastener is hollow and retains with the holder, and the slidable fastener includes two guide posts, a positioning plate, and an elastic locker mounted on the positioning plate to alternatively retain with the first notch or the second notch, such that when the elastic locker retains with the first notch, the positioning plate limits the locking seat, and when the elastic locker retains with the second notch, the positioning plate releases the locking seat.