An orbital sander is a power tool used for smoothing surfaces, typically wood, by using a circular sanding pad that moves in an orbital motion. This motion helps to reduce swirl marks and provides a more even finish compared to other sanding methods. Orbital sanders are commonly used in woodworking, furniture refinishing, and home improvement projects. These tools come in various sizes and types, including random orbital sanders, which combine circular and elliptical motion for better results. They are often lightweight and easy to handle, making them suitable for both professionals and DIY enthusiasts. Proper use of an orbital sander can significantly improve the quality of a finished surface.