This product is the Replacement Blade Cartridge for the UST-540 and is also compatible with the Universal Cable Stripping Tools (UST-500 series) and Coaxial Cable Stripping Tools (UST-100 series). This blade cartridge features the following:

• Provides a 2-level strip for RG59 and RG6 COAX Cables for F, BNC, and RCA connector termination
• High carbon steel blades last for over 5,000 strips
• Cartridge is reversible for ambidextrous use
• Cable stop on one side of the cartridge ensures precise stripping without need to make adjustments