The Klein Tools Radial Stripper cartridge was designed to remove the outer jacket of twisted-pair cable without damaging the conductors. Specifically for use with Unshielded Twisted Pair (UTP) cables. Durable high-carbon steel cutting blades are ground and honed for long life. For use with Klein's Cartridge Radial Strippers. The Klein Tools Radial Stripper cartridge was designed to remove the outer jacket of twisted-pair cable without damaging the conductors. Specifically for use with Unshielded Twisted Pair (UTP) cables. Durable high-carbon steel cutting blades are ground and honed for long life. For use with Klein's Cartridge Radial Strippers. Designed for use with Dual Cartridge Radial Stripper and Radial Cartridge Strippers Strips Cat3, Cat5e and Cat6/6A twisted pair cable V notch eliminates scoring of the center conductor The Klein Tools Radial Stripper cartridge was designed to remove the outer jacket of twisted-pair cable without damaging the conductors. Specifically for use with Unshielded Twisted Pair (UTP) cables. Durable high-carbon steel cutting blades are ground and honed for long life. For use with Klein's Cartridge Radial Strippers.