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 commonly used in woodworking and metalworking shops for tasks like resawing lumber and making intricate cuts. These machines come in different sizes and configurations, including portable and stationary models. The blade can be adjusted for different thicknesses and types of cuts, making the band saw versatile for both professional and DIY projects. Safety features, such as blade guards, are essential for safe operation.