A belt sander is a power tool used for smoothing and shaping wood and other materials. It features a continuous loop of sandpaper, known as a belt, that rotates around two drums. This design allows for efficient removal of material, making it ideal for large surfaces and rough finishes. Belt sanders come in various sizes and can be handheld or stationary. They are commonly used in woodworking, furniture making, and construction. Proper safety precautions, such as wearing goggles and a dust mask, are essential when using a belt sander to protect against dust and debris.