About Electric Screwdrivers

An electric screwdriver is a screwdriver with an electric motor inside that causes the chuck or top of the screwdriver to rotate. The screwdriver head or bit is removed when it's not used and can be replaced with different sized heads to do different types of jobs. These models run on regular batteries, a power cord or rechargeable batteries.

History

The first electric screwdriver was produced by Black & Decker and began appearing on store shelves in 1923. Early models included only one head, which wore out fairly quickly, and a long cord. Other manufacturers began making different models that featured a shorter cord that rolled up inside the screwdriver and screwdrivers that used different heads. While Black & Decker made the first model, other companies including Stanley and Craftsman also make models that are popular with shoppers.

Features

An electric screwdriver contains a plastic case in which all the components are held inside. An electric motor inside the screwdriver causes the bit or head to turn, which allows the user to screw or unscrew. A switch on the outside of the case allows the user to turn the screwdriver on or off. It also features a locking mechanism on the chuck, which holds the screwdriver head in place.

Types

The more popular type of electric screwdriver actually runs on an electric motor, but utilizes a rechargeable battery inside the case. This battery must be recharged to keep it running or replaced if the battery dies. The other type of electric screwdriver has the same type of motor but relies on electricity to run. It contains a short power cord that must be plugged into an outlet to use. Another version runs on AA or AAA batteries and doesn't have as much power as the other models.

Identification

Many models of electric screwdrivers contain a smaller carrying handle, just large enough for an adult-sized hand. This handle has a plastic or rubber comfort grip that makes it easier to hold during a job. This screwdriver also contains a switch on the side that users can change back and forth to screw or unscrew. In addition, there are rotating models that allow the user to adjust the top of the screwdriver to make it fit into corners and other unusually shaped spaces.

Considerations

Those shopping for an electric screwdriver should be careful about their needs. There are many electric screwdrivers on the market, with various prices. However, there are some shoppers who buy a more expensive or powerful model when they only need one for basic jobs around the house. There are also some larger power drills that include screwdriver heads in their bit kits. Those work best for those shoppers who need something that can handle various jobs.