Cable Matters Punch-Down Impact Tool with Krone Blade Terminates cable into patch panels and keystone jacks with Krone IDC terminations Spring-loaded reversible blade with scissors cuts excess wire automatically for a clean connection Pop-out hook and extractor tool for removing old wires or pushing down wires Integrated wire-stripper blade seated in the body of the tool with protective guide Compatible with Cat5 cable, Cat5E cable, Cat6 cable, and Cat6a cable