The Neurosurgery Surgical Rotating Kerrison Shaft, 7″ (175mm) Bayonet, 3mm, 40° Up, Panther Coat, Requires 70-2390P Micro is a premium microsurgical instrument engineered for precise bone removal during spinal and cranial neurosurgery. Featuring a bayonet shaft, 3mm biting jaw, rotating mechanism, and advanced Panther Coat finish, it delivers exceptional precision, durability, and surgical control.