A power tool is a tool powered by an electric motor, a compressed air motor, or a gasoline engine.
Tools are classified as either stationary (corded) or portable (cordless).
They are used in industry metalworking, woodworking, in construction, for drilling and sanding, cutting and shaping,
grinding, painting, and polishing.
Doesn't matter what kind of work are your doing - electric tools everywhere work for you.
Cordless tools are really useful - they can be used at any place.