A band saw is a power tool used for cutting various materials, primarily wood and metal. It features a long, continuous blade with teeth that runs on two wheels, allowing for smooth and precise cuts. Band saws are versatile and can perform straight cuts, curves, and intricate shapes, making them popular in woodworking and metalworking shops. These machines come in different sizes and configurations, including portable and stationary models. The blade's width and tooth design can be adjusted based on the material being cut, enhancing their functionality. Safety features, such as blade guards and emergency stops, are essential for safe operation.