The Neurosurgery Surgical Rotating Kerrison Shaft, 7″ (175mm) Bayonet, 4mm, 40° Up, Panther Coat, Requires 70-2390P Micro is a precision-engineered microsurgical instrument designed for controlled bone removal and decompression procedures. Featuring a bayonet shaft, rotating mechanism, 4mm jaw, and durable Panther Coat finish, it provides enhanced surgical access, smooth handling, and reliable performance in advanced neurosurgical applications.