Power tools are machines that help people complete tasks more efficiently and with less effort than hand tools. They use electricity, batteries, or compressed air to perform various functions, making them popular for both professional and DIY projects. Common examples of power tools include drills, saws, and sandors, which can cut, shape, or smooth materials like wood and metal. Using power tools can save time and energy, allowing users to tackle larger projects with ease. However, it's important to follow safety guidelines, such as wearing protective gear and understanding how to operate each tool properly. This ensures a safe and successful experience while working on any project.