Griffin Ultimatum | VANAX SuperClean | TitaniumThe Griffin Ultimatum edition represents RSKs ultimate refinement of a knife model that has been on the market for over a decade. Its most standout feature is the use of Vanax steel, hardened to 60 61 HRCa premium grade material with unmatched corrosion resistance and top tier performance across all properties. As an all purpose EDC tool, the Griffin series retains its signature elements: the button lock mechanism with safety lock, the Griffin Eye