Screwdriver bits are small, interchangeable tips designed to fit into a power drill or screwdriver. They come in various shapes and sizes to match different types of screws, such as Phillips, flathead, and Torx. This versatility allows users to easily switch between bits for different tasks, making them essential tools in both professional and DIY settings. Made from durable materials like steel or chrome vanadium, screwdriver bits are built to withstand wear and tear. They are often sold in sets, providing a range of options for various projects. Properly selecting the right bit ensures efficient and effective screw driving.