The Medtronic Non-Rotatable Tri-cut Sinus Blade (4 mm x 11 cm) is designed for use with compatible microdebrider systems to enable controlled tissue removal during sinus procedures. Its tri-cut design supports efficient resection, while the non-rotatable configuration provides stability and consistent cutting orientation.Tricut Non-Rotatable Straight Sinus Blade, 4 mm dia. x 11 cm Length  5/Box Category: ENT SKU: 1884004.