What Is an Electric Tool?
An electric tool is a tool that is operated by electricity.
Tools such as eyeglass wrenches and screwdrivers are generally used by human power. An electric tool allows work to be done much faster than by human power. Some electric tools are capable of performing crafts with a greater force than human power.
However, they have the disadvantage of being more expensive than human-powered tools, and their drive units can break down. They are also heavier because they come with batteries and motors. They may not be able to be used in confined spaces because they are not maneuverable.
Uses of Electric Tools
Electric tools are widely used in production and construction sites. In regions where DIY activities are popular, such as the United States, even ordinary households have their own power tools.
In places with huge piping, such as process factories, the bolts used in flange sections are also huge, requiring a long time for manual fastening. Therefore, man-hours are reduced by using impact wrenches and other tools. Electric sanders are also sometimes used to remove rust and process metals.
On construction sites, they are used for cutting and processing wood and plasterboard. They are indispensable in today’s industry.
Principle of Electric Tools
As the name implies, electric tools are powered by electricity. Generally speaking, there are two types of power tools: those with cords for power supply and those that are battery-operated.
Globally, commercial power supplied by electric power companies is alternating current. Therefore, those with cords have a built-in motor for AC, which rotates inside to do the work. Bolts, screws, and similar fasteners come in various head sizes depending on the device’s requirements. Therefore, most electric fastening tools can easily accommodate different head sizes by changing attachments. There are also multi-functional products that can be used as a drill, screwdriver, wrench, etc. with a single product by changing attachments.
In recent years, the demand for electric tools that operate on batteries accounts for most of the demand due to the evolution of energy storage technology, represented by lithium-ion batteries. Since the power source is also DC low voltage, the risk of electric shock is reduced. Since the battery is a DC power source, it has a built-in DC motor. Battery-powered electric tools come with a charger with an AC adapter as an accessory.