Description of the Product For people who work with data communications and telecommunications networks, Ethernet crimping pliers are indispensable. In addition to being useful for cutting UTP and STP cables and removing insulation from network cables, the Deli Tools EDL4971 crimping pliers make it easy and safe to crimp 8P, 6P, and 4P connectors. They are incredibly strong and resistant to damage because they are made of premium A3 steel.