Crimp on both RJ11 and RJ45 cable connectors from a single tool (with wire stripper)This RJ45 crimper/RJ11 crimper saves valuable time and effort on any related cable job acting as both cable crimper and cable stripper.The StarTech.com Advantage- Crimp on both RJ11 and RJ45 cable connectors from a single tool with a built-in wire stripper for extra convenience- Sturdy metal construction for reliability even after heavy use- Backed by a StarTech.com 2-year warranty and free lifetime technical support