A belt sander is a power tool used for sanding surfaces, typically made of wood or metal. It consists of a continuous loop of sandpaper that moves over two drums, allowing for efficient material removal. Belt sanders are commonly used in woodworking to smooth rough surfaces, shape edges, and prepare materials for finishing. These tools come in various sizes and designs, including handheld and stationary models. A stationary belt sander is often used in workshops for larger projects, while a handheld belt sander offers portability for smaller tasks. Proper safety precautions, such as wearing goggles and a dust mask, are essential when using a belt sander.