An electric tool (1) includes piston (36) reciprocably housed in cylinder (34) provided in main body portion (10) and be pushed by a pressure of fluid; tool head (14) coupled to a distal end of the main body portion and performing a predetermined operation by being pushed by the piston; return channel (40) communicating from the cylinder to a fluid tank to allow the fluid to flow therethrough; pressure regulating valve (44) disposed in operational flow channel (42) branching from the return channel and taking an open position when the pressure of the fluid in the return channel becomes equal to or higher than a predetermined value; operating pin (46) disposed in the operational flow channel and pushed by the pressure of the fluid flowing therein; and return valve (48) disposed in the return channel and taking an open position by being pushed by the operating pin.

The invention relates to pliers (1). The pliers might be embodied as crimping pliers (2), cutting pliers or pipe crimping pliers. In the pliers (1) pliers jaws (3, 4) are driven by hand levers (8, 9) via a toggle lever drive (13). The toggle lever drive (13) is not formed by toggle lever rods or toggle lever bars. Instead, imaginary toggle levers are formed by a plurality of toggle lever components (35) which are movable along contact contours (30, 37; 33, 38) relative to each other.

A tool for mounting a terminal onto a stud contact is disclosed. The tool has a receptacle, a stud detector, and an indicator. The receptacle is open in a mounting direction and receives the terminal. The stud detector detects a final installation position of the stud contact within the receptacle. The indicator is visible from an exterior of the tool and is connected to the stud detector. The indicator has a first visual appearance and a second visual appearance different from the first visual appearance, and automatically switches between the first visual appearance and the second visual appearance based on whether the stud contact is in the final installation position.

A tool for mounting a terminal onto a stud contact is disclosed. The tool has a receptacle, a stud detector, and an indicator. The receptacle is open in a mounting direction and receives the terminal. The stud detector detects a final installation position of the stud contact within the receptacle. The indicator is visible from an exterior of the tool and is connected to the stud detector. The indicator has a first visual appearance and a second visual appearance different from the first visual appearance, and automatically switches between the first visual appearance and the second visual appearance based on whether the stud contact is in the final installation position.

A swage tool includes a first die coupled to a portion of a head and a second die coupled to a portion of a die block. A die block holder holds the die block and the second die. A piston inside a cylinder moves the second die toward the first die. At least two pins couple the head to the die block holder. When one of the pins is coupled to the head and to the die block holder, the head rotates about an axis transverse to a longitudinal axis of the cylinder.

A crimp tool includes a frame, a lead screw and a nut assembly connected to the lead screw. A spring member is connected to the frame and movable with rotation of the lead screw. A first transducer is connected to the nut assembly to measure a first force applied on the nut assembly. A second transducer is connected to the spring member to measure a second force applied thereon by the spring member.

A crimp tool includes a frame, a lead screw and a nut assembly connected to the lead screw. A spring member is connected to the frame and movable with rotation of the lead screw. A first transducer is connected to the nut assembly to measure a first force applied on the nut assembly. A second transducer is connected to the spring member to measure a second force applied thereon by the spring member.

Portable, hand held, battery operated, hydraulic tools are provided with a tool frame and one or more interchangeable working heads. When the working head is connected with the tool frame, a piston actuated by a hydraulic system within the tool frame applies force to the working head to perform a task. A coupling mechanism holds the working head to the tool frame. The coupling mechanism allows the working head to be removed from the tool frame and another working head to be joined to the tool frame. The coupling mechanism can hold the working head at a fixed rotational angle with respect to the tool frame. The coupling mechanism can also allow the working head to rotate with respect to the tool frame.

The present disclosure relates to a crimper body and a crimper. The crimper body is applied to the crimper for crimping cables. The crimper body includes a body, which includes a fixed mold holder provided at one end of an upper portion of the body, and a protector. The protector is mounted to the body to reinforce and fix the fixed mold holder to rest of the body over the entire length of the fixed mold holder. The present disclosure further relates to the crimper including the crimper body. The crimper can effectively prevent fragments of the crimper body from dispersing when broken, and has the advantages of compact structure, light weight, and low cost.

The present disclosure relates to a crimper body and a crimper. The crimper body is applied to the crimper for crimping cables. The crimper body includes a body, which includes a fixed mold holder provided at one end of an upper portion of the body, and a protector. The protector is mounted to the body to reinforce and fix the fixed mold holder to rest of the body over the entire length of the fixed mold holder. The present disclosure further relates to the crimper including the crimper body. The crimper can effectively prevent fragments of the crimper body from dispersing when broken, and has the advantages of compact structure, light weight, and low cost.