The Antrum Punch Down with a 3mm tip (right) and 4.25" working length (WL) is a specialized surgical instrument used in ENT (Ear, Nose, and Throat) procedures, particularly in sinus surgeries. The 3mm tip is designed for precise tissue removal, often used to access the antrum (sinus) area, while the right-angle design allows for better maneuverability in confined spaces.