This product is the Replacement Blade Cartridge for Universal Cable Stripping Tool (UST-500) and CAT/Twisted Pair - RG59/6 Stripping Tool (UST-150). This blade cartridge features the following:

Provides a 2-level strip for F, BNC, and RCA connector termination, and the other side of the cartridge removes jackets off various (CAT, CAT5, CAT5e, CAT6) unshielded twisted pair cables
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
Compatible with all of our UST Stripping Tools (except the UST-175 and UST-185)
Stripping action removes 1/4- of jacket and 5/16- of shield and dielectric, which exposes the center conductor