All-in-one professional modular crimping tool with cutting, stripping & cable-testing functions; Compatible with RJ45, RJ11, RJ12 & RJ22 plugs; Cuts, strips, terminates & tests with one tool; Tests patch cables & installed wiring; Ratchet function; Strips & cuts network & telephone cables; Crimps RJ45, RJ11, RJ12 & RJ22 plugs; 9 LEDs show test results; 3-year warranty;