An electric torque screwdriver is a tool used to tighten screws and bolts. These tools use electricity to rotate the head of the screwdriver, allowing the body of the screwdriver and the arm of the person holding it to stay still. When the tool reaches a specified torque, it stops rotating. This type of tool is often used when assembling small items, such as electronics, that require the components to be assembled to exact specifications.
A person using an electric torque screwdriver does not need to use manual force to tighten the screw or bolt. Instead, electricity is used to power the screwdriver and to rotate the head at high speeds. The tool can be held still while the motorized parts do the work of tightening the screw.
The screwdriver conductor must be positioned so that it is in line with the screw or bolt. In most cases, the handle of the tool is aligned with the screw head, so that the entire tool points in the direction of screw tightening. It is possible to find electric torque screwdrivers with angled handles that make them more comfortable.
The electric torque screwdriver is designed to stop when the screw or bolt has reached a certain density. The tool is capable of sensing the tightness of the screw by determining how much torque is needed to continue to tighten it. When this torque is reached, the tool will automatically shut down or slip out of the screw to prevent over-tightening.
The torque can be set so that all the screws on an object are tightened to exactly the same specifications. This allows devices to be built so that there are no over-tightened screws that can damage delicate things like electronics, or under-tighten, which can cause screws to fall out. In most cases, the torque setting on an electric torque screwdriver can easily be changed as needed. Some electric torque screwdrivers can be set so that the torque cannot accidentally.
There are a few ways that an electric torque screwdriver can be turned on. Some of these tools are designed to turn on when pressed against the screw head, while others are turned on and off through a trigger or button. Screwdrivers that activate when pressed against the screw head are automatically turned off when they have reached the desired torque, while those controlled by a trigger or button can either be turned off or slid off the head of the screw at the specified amount of torque.
