For Rj-11 and 12 and 14 (6 Position-123 Pair) & Rj-45 (8 Position-4 Pair) Modular Plugs Multi-function Tool For Round Voice and data Cables Cuts Strips & Crimps For Easy On-the-job 1-tool Application Round Cable Stripping Chamber For Cat5-e and 6 Cables Designed For Professional Use In Data & Voice Applications Rounded Edge Textured Handle Grips Provides Crimping Of The Primary Rj45 Modular Plug Strain Relief & Plug Pins Locking Tab Keeps Tool In Closed Position When Not In Use Steel Frame For Long-term Durability