Super CPT tool features: A wide body to support large cables. Slots for holding two different sized cartridges at the same time. Cartridges for a wide range of 50 and 75 ohm cables, all of which fit the same tool. Quick-release mechanisms for fast, safe cartridge changes. Hardened tool-steel blades (not razor blades!). A lifetime warranty on the tool body. A patented clean-out feature that removes debris with each use.