This product is the Replacement Blade Cartridge for Universal Cable Stripping Tool (UST-500) and CAT/TP - RG59/6 Stripping Tool (UST-175). This blade cartridge features the following:

Provides a 3-level strip for 3-step strip connector termination, such as the ITT Cannon W58-124-9019-910 BNC crimp connector
High carbon steel blades last for over 5,000 strips
Cable stop on one side of the cartridge ensures precise stripping without need to make adjustments
Cartridge is reversible for ambidextrous use
1st level removes 0.625- of jacket, 2nd level exposes 0.156- of dielectric and 3rd level exposes 0.156- of center conductor