Grinding bits are small tools used in various machines to shape, smooth, or finish materials like metal, wood, or plastic. They come in different shapes and sizes, allowing them to perform specific tasks, such as drilling holes or creating intricate designs. Common types include diamond bits, carbide bits, and aluminum oxide bits, each suited for different applications. These bits are typically attached to power tools like drills or dremels, making them versatile for both professional and DIY projects. Proper selection and usage of grinding bits can enhance efficiency and achieve desired results in tasks ranging from woodworking to metalworking.