Modular Installation Kit Klein Tools VDV226-817 Ratcheting Modular Crimper/Stripper: All-in-one tool cuts, strips and crimps paired-conductor cables (RJ11/RJ12, RJ22, RJ45) Fast, reliable crimp tool with steel body for durability with ergonomic comfort grips Cuts, strips and crimps Twisted Pair, Ethernet, RJ45 voice and data cables Crimps 4, 6, and 8 position modular connectors (RJ22, RJ11/RJ12, and RJ45) Crimping dies are precision ground from high-carbon steel Ratchet safety-release and a blade-guard on cutting and stripping knives reduce risk of injury Full-cycle ratchet mechanism prevents the release of the connector prior to full compression Yellow and black grips enhance comfort, visibility, and allow quick identification Telephone Plug - RJ11 - 6P6C: Thick 50 micro-inch gold plating and 3-pronged contacts with durable housing -- for 1, 2 or 3 line telephones Modular Data Plug - RJ45 - CAT5e: Thick 50 micro-inch gold plating and 3-pronged contacts with durable housing -- 8 position, 8 contact for data cables