Rotating Kerrison Shaft, 8″ (200mm) Straight, 4mm, 40° Up, Panther – Shaft Only – Requires 70-2390P Micro Handle is a precision spinal and neurosurgical instrument component designed for controlled bone removal and decompression procedures. Featuring a straight rotating shaft, 4mm bite size, 40° upward-facing footplate, Panther-style cutting configuration, and premium stainless steel construction, this modular Kerrison shaft delivers exceptional cutting precision, surgical access, and reliable performance when used with the compatible 70-2390P Micro Handle.