Klein Tools Coax Cable Crimper / Wire Stripper / Wire Cutter is a premium, long lasting tool for CAT3, CAT5e and CAT6/6A cable using RJ11/RJ12 standard and RJ45 Pass-Thru™ connectors. Pass-Thru™ technology significantly reduces prep work time wiring diagram on the tool helps eliminate rework and wasted materials. Compact, non-slip comfort grip reduces hand strain and stores easily. For use with Klein Pass-Thru™ Connectors (in packs of 10, 50 or 200).