A circular saw blade is a round cutting tool used in various power saws, primarily for cutting wood, metal, or plastic. The blade features sharp teeth around its edge, which rotate at high speeds to slice through materials efficiently. Different types of blades are designed for specific tasks, such as ripping, crosscutting, or cutting metal, and they vary in size and tooth configuration. These blades are typically made from high-carbon steel or carbide-tipped materials, enhancing durability and cutting performance. Proper maintenance, including regular sharpening and inspection, is essential for safety and effectiveness. Users should always follow safety guidelines when operating a circular saw.