Nice little tool for opening up the airway, it has a razor asymmetrical chisel grind with swedge and OD green G10 scales. I acid etched the O-1 blade and gave it a slight tumble finish. Jimping along the spine. She is stout at 3/16″ thickness. 61 HRC. Cutting edge is 4.5″ with a 10.5″ OAL.