Multi Network Connectors Application Crimps, strips and cuts RJ45 (8P8C), RJ12 (6P6C) and RJ11 (6P4C / 6P2C) network connectors including CAT5/5e, CAT6/6a and CAT7. Also works for pass thru connectors with built-in pass through blade. Compact Design Modular Crimper 2/3 the size of traditional crimpers for one hand easy operation. The compact size fits in any pocket, tool pouch and chest. Built-in Cat7 to Cat5 Switcher Switch from Cat7 to Cat5 crimping by using a screwdriver to loosen then switch up or down to change the compression mode. Enables you to crimp both shielded CAT6a connectors as well as standard RJ45 connectors. Recoil Spring Loaded Mechanism The recoil spring design on the handle returns tool to ready position upon cycle completion, helps you save time and effort. Whats in the Package? Package includes 1x All-in-One Pass Through Crimper, 1x Blade Set, 1x Tool Carry Pouch and 3x Pass Through Connectors for test.