This is rj45/rj11 crimping tool hard and durable enough to crimp the network cables for using magnetic steel the mouth of the press-pliers is made of high quality steel. It won’t damage the shelled-wire when crimping. The handle of the crimper is long enough, which will help you crimping effortless. The perfect tool for making your own network cables rj45 and rj11 cables portable style with perfect shape. For network installations up to 100 mbps 10base-t ethernet and token ring. Suitable for network cable with rj45 connector and adsl cable with rj11 connect. Suitable for cat5 and cat5e cable with 8p8c, 6p6c and 4p4c plugs functions : cut the wire by the blade near the handles. Shell the wire by the middle blade. Press the connector by the crimper.