All-in-one Modular Crimper Crimp strip cut and test for RJ45 RJ12 and RJ11 connectors. NOTE: NOT for use on AMP/TYCO style plugs and does NOT crimp EZ-RJ45 (pass thru connectors). Built-in RJ45 Cable Tester Powered by 3x LR44 battery (which is NOT included), come with user manual and instruction. LED light displays wire connecting condition, testing for both UTP and STP cables. Built-in Cable Stripper Cutter SK5 blade ensures its quality, come with replacement blade set. Strips and cuts Ethernet cables, with a blade-guard on cutting and stripping knives reduce risk of injury. Full-cycle Ratchet Mechanism Ratcheting prevents the release of the connector prior to full compression. Crimping dies are precision ground from high-carbon steel with black-oxide finish for excellent performance and durability. Whats in the Package? Package includes 1x 468ST Cable Tester Crimper, 1x Replacement Balde Set and 1x User Guide. After use, you can conveniently store it due to its locking feature.