Luer Bone Rongeur Simple Action Handle Slight Curve Lightweight (150mm) (6inch)A Luer Bone Rongeurs Box Joint 150mm 6inch is a type of surgical instrument used to cut or remove bone during a surgical procedure. The instrument is composed of two sharp blades that are connected at a pivot point in the center. The blades are held together by a box joint, which allows for greater precision and control when cutting. The instrument is typically used for orthopedic and neurosurgical procedures.