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).