A dental drill is a small, handheld tool used by dentists to remove decay from teeth and prepare them for fillings. It operates at high speeds and can be equipped with various attachments, such as burs, to perform different tasks. The drill helps in shaping the tooth and cleaning out cavities effectively. Dental drills are often powered by electricity or air pressure, making them efficient for precise work. They are designed to minimize discomfort, and dentists typically use local anesthesia to ensure patients feel little to no pain during the procedure. Proper sterilization of the drill is essential to prevent infections.