Jonards UST-205 is a black replacement blade cartridge for the UST-100. The UST-205 cartridge is used to strip RG59, RG6, RG6 Tri & Quad shield, RG7 & RG11 coaxial cables. The cartridge provides a 2-level strip for "F" Connector termination. These hardened steel blades ensure optimum performance and a long lifetime. Each blade cartridge can prepare 2,500 to 5,000 cables depending on braid coverage.