The invention relates to a bolt cutter (1) which can be used for cutting a workpiece, especially a workpiece that is bolt-like. The bolt cutter comprises a fixed hand lever (3) and a movable hand lever (2). A cutting jaw (8) is fixedly connected to the fixed hand lever (3). The movable hand lever (2) via a ratchet gear (7) is coupled to a movable cutting jaw (6).

In an opening position of the cutting jaws (6, 8) the movable cutting jaw (6) lies against a rest (55) supported by a support spring (54). By manual application of an opening force, the movable cutting jaw (6) can be moved into an enlarged opening position from the mentioned opening position by pressurizing the support spring (54). When the manually applied opening force is removed, the movable cutting jaw (6) automatically returns to the opening position from the enlarged opening position due to the support spring (54).

Hand tools which have an ergonomic using a palm handle and finger handle designs which achieve mechanical efficiency and ease of use. The ergonomic handle is compatible with the muscle movements of an operator using a hand tool reducing muscle strain and pain. Optionally, the palm and finger handles can have ergonomically designed cushions. In an embodiment, the finger handle can have a finger set which has a forward finger flange, a tail finger flange and a pinky grip. The ergonomic handle can also use a relief washer system to achieve a smooth low frictional resistance cutting stroke.

Hand tools which have an ergonomic using a palm handle and finger handle designs which achieve mechanical efficiency and ease of use. The ergonomic handle is compatible with the muscle movements of an operator using a hand tool reducing muscle strain and pain. Optionally, the palm and finger handles can have ergonomically designed cushions. In an embodiment, the finger handle can have a finger set which has a forward finger flange, a tail finger flange and a pinky grip. The ergonomic handle can also use a relief washer system to achieve a smooth low frictional resistance cutting stroke.

A control device of a cutting tool for general use or gardening is revealed. The cutting tool, formed by a first component and a second component pivotally connected to each other, can be opened or closed gradually for cutting. The control device is pivotally connected to the second component. The control device can be pushed to act on the second component. The cutting tool performs multi-stage or one-time cutting according to the control device being pushed to the required position. Moreover, the first component and the second component are close to or away from each other under control of the control device.

Ergonomic snips have a pair of pivoted levers each having a forward end formed as a cutting blade and a rearward end forming a hand portion. A first handgrip on one hand portion includes a first anti-slip ear suitable for engaging a user's thumb. A second handgrip on the other hand portion includes a second anti-slip ear to form a finger receiving portion to accommodate one or both of the index and middle fingers of a user to allow a user to either place the second anti-slip ear between the user's index and middle fingers to maximize torque or place the second anti-slip ear between said middle and ring fingers to provide greater cutting control or precision. The distances between a user's thumb and the user's index and middle fingers remain substantially the same in both positions of the hand.

Scissors including handles and scissors heads. The handles include a first handle and a second handle, and the scissors heads include a first scissors head and a second scissors head. The first scissors head is provided with a first blade and extends from one end of the first handle, and the second scissors head is provided with a second blade and extends from one end of the second handle. The first scissors head is pivotally hinged to the second scissors head via a pivoting structure, and the first scissors head and the second scissors head have a small width to thickness ratio at the connection between the scissors heads and the pivoting structure. The scissors increase the rigidity of the scissors head, enhance the shear-compression intensity of the scissors, facilitate the cutting of thick objects, and meet the requirements of various objects to be operated.

Scissors including handles and scissors heads. The handles include a first handle and a second handle, and the scissors heads include a first scissors head and a second scissors head. The first scissors head is provided with a first blade and extends from one end of the first handle, and the second scissors head is provided with a second blade and extends from one end of the second handle. The first scissors head is pivotally hinged to the second scissors head via a pivoting structure, and the first scissors head and the second scissors head have a small width to thickness ratio at the connection between the scissors heads and the pivoting structure. The scissors increase the rigidity of the scissors head, enhance the shear-compression intensity of the scissors, facilitate the cutting of thick objects, and meet the requirements of various objects to be operated.

A convertible cutting device (1, 1) comprises a first handle (2, 2) with a first blade (8, 8) and a second handle (5, 5) with a second blade (11, 11), and a conversion device (14, 14) being configured to adapt at least a scissor position and a knife position. The conversion device (14, 14) and the second handle (5, 5) comprise in each case at least one abutment section (15, 15′; 18, 18) being configured to abut against one another when the conversion device (14, 14) is in the knife position and when the first handle (2, 2) and the second handle (5, 5) are in the closed position, whereby the conversion device (14, 14) is retained in the knife 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 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.