Your complete RFI cable preparation and crimping system allows you to terminate most coaxial and datacom connectors for RG 174, 58, 59, 8281, RG8, and fiber optic cables. Ergonomically designed tool will last over 50,000 crimp cycles. Handy chart inside lid indicates which of the four the interchangeable dies are correct for the particular cable. All Hex Dies are precision die cast, not pressed, powdered metal, to provide long field service use and are easily changed using either a Phillips or Standard screwdriver.