This dental metal drill bit has undergone precise CNC machining, with sharp and accurate cutting edges that can easily penetrate hard tissues of teeth. The cutting process is smooth, reducing discomfort for patients. The unique blade groove design facilitates the discharge of debris, avoids blockage, and improves work efficiency. At the same time, the surface of the drill bit has been specially treated to be smooth and corrosion-resistant, reducing the possibility of bacterial adhesion and ensuring the safety and hygiene of the surgery.