The Neurosurgery Surgical Rotating Kerrison Shaft, 6″ (150mm) Bayonet, 1.5mm, 40° Up, Stainless Steel, Requires 70-2390 Micro is a premium detachable Kerrison shaft engineered for precise bone resection during neurosurgical and spinal procedures. Featuring a Bayonet shaft, 1.5mm footplate, 40° up-biting jaw, and compatibility with the 70-2390 Micro Handle, it provides outstanding precision, enhanced surgical visibility, and reliable performance for microsurgical applications.