A hand tool includes a first driving element, a second driving element and at least one connecting element. The first driving element includes a first driving portion and a first staggered portion. The first driving portion is connected to the first staggered portion integrally. The second driving element does not contact the first driving element and includes a second driving portion and a second staggered portion. The second driving portion is connected to the second staggered portion integrally. The connecting element connects the first staggered portion and the second staggered portion, wherein the connecting element is made of insulating material.

A set of pliers having a linear crab claw configuration at its distal end, a front section, an upper work member, a lower work member, an axle, a pair of elongated handles and a pair of ergonomic grips. The set of pliers is configured with the front section to extend forward from a pivot point, wherein the pivot point is rotatable on the axle and the upper work members and the lower work member include the linear crab claw configuration, and the linear crab claw configuration comprises a linear arcuate, convexly curved contour useful for simultaneously grasping a mechanical electrical connector and releasing the locking mechanism for removal and/or installation.

A set of pliers having a linear crab claw configuration at its distal end, a front section, an upper work member, a lower work member, an axle, a pair of elongated handles and a pair of ergonomic grips. The set of pliers is configured with the front section to extend forward from a pivot point, wherein the pivot point is rotatable on the axle and the upper work members and the lower work member include the linear crab claw configuration, and the linear crab claw configuration comprises a linear arcuate, convexly curved contour useful for simultaneously grasping a mechanical electrical connector and releasing the locking mechanism for removal and/or installation.

A cable handling device may include a clamp assembly having a first member having a jaw end and an arm end and a second member having a jaw end and an arm end. The first and second members of the clamp assembly are pivotally connected together so that when the arm ends are moved away from one another the jaw ends move away from one another and vice-versa. A proximal end of a first elongate electrically insulated handle is mounted to the arm end of the first member of the clamp assembly. A proximal end of a second elongate electrically insulated handle is mounted to the arm end of the second member of the clamp assembly.

A cable handling device may include a clamp assembly having a first member having a jaw end and an arm end and a second member having a jaw end and an arm end. The first and second members of the clamp assembly are pivotally connected together so that when the arm ends are moved away from one another the jaw ends move away from one another and vice-versa. A proximal end of a first elongate electrically insulated handle is mounted to the arm end of the first member of the clamp assembly. A proximal end of a second elongate electrically insulated handle is mounted to the arm end of the second member of the clamp assembly.

The present invention discloses a high voltage insulating electric tool, comprising insulating handles made of plastic material, and insulating fittings made of ceramic material. The insulating fittings are mounted on the insulating handles in a replaceable manner to directly contact a work piece under service condition and prevent electric shock. The present invention adopts handles made of plastic material and cutting edges made of ceramic so that the entire product cannot bear a risk of breakdown by current in an environment of high voltage. The ceramic cutting edges made of ceramic are replaceable, thereby avoiding the circumstance that the entire metallic electric tool has to be scrapped due to burst, blunting or large clearance of the cutting edges. Further, plastic material and ceramic have desirable chemical stability and strong resistance to acids, alkalis and other chemicals.

The present invention discloses a high voltage insulating electric tool, comprising insulating handles made of plastic material, and insulating fittings made of ceramic material. The insulating fittings are mounted on the insulating handles in a replaceable manner to directly contact a work piece under service condition and prevent electric shock. The present invention adopts handles made of plastic material and cutting edges made of ceramic so that the entire product cannot bear a risk of breakdown by current in an environment of high voltage. The ceramic cutting edges made of ceramic are replaceable, thereby avoiding the circumstance that the entire metallic electric tool has to be scrapped due to burst, blunting or large clearance of the cutting edges. Further, plastic material and ceramic have desirable chemical stability and strong resistance to acids, alkalis and other chemicals.

An insulating screwdriver handle structure may include a handle, a central shaft, an accommodating member, and at least a screwdriver bit. The handle has a working end and an open end, and an insulator embedded within the working end is connected to a driving member, and the driving member protruding from the working end is adapted to connect to the screwdriver bit. The central shaft comprises a fixed end and a locating end. The driving member and the central shaft are separated by the coating of the insulator, so that the driving member and the central shaft have no direct contact to achieve complete insulation during use, making it relatively safe for application in electrical equipment.

A screwing tool has a driving portion, an output portion, and a switching ring of a freewheel lock, the switching ring being disposed axially between the driving portion and the output portion, and the freewheel lock being able to be brought, by rotation of the switching ring in an azimuthal switching direction, into a freewheel position, in which the output portion can be rotated relative to the driving portion in a freewheel direction. In order to enable a quick screwing function by means of the screwing tool, the switching ring can be rotated in the freewheel direction in question without limitation, which is achieved by virtue of the fact that the switching direction corresponds to the freewheel direction.

A hand tool with a function of preventing electronic shock includes a tool body, a basic insulation layer and a skidproof insulation layer. The basic insulation layer is formed on the tool body and has holes exposing a part of the tool body. The skidproof insulation layer is formed on the basic insulation layer to cover the holes. Annular protrusions are formed on the outer surface of the basic insulation layer or the inner surface of the skidproof insulation layer and are closer to edges of the basic insulation layer and the skidproof insulation layer than the holes. Therefore, it is possible to prevent electric shock caused by the seeping of moisture or liquid between the basic insulation layer and the skidproof insulation layer.