1. Combo RJ45 Crimper Kit: Ethernet crimping tool kit includes RJ45 Pass Through Crimp Tool, 20PCS CAT6 Pass-Thru Connectors, 1 x Wire Stripper,1 x Wire Cutter Plier and 1 x Network Cable Tester(9V Battery Not Included) 2. All-In-One RJ45 Crimp Tool: Wire stripping, crimping, and cutting tool for paired-conductor data cables. Ideal for crimping 8 position modular plugs such as CAT5e, CAT6 and CAT6a connectors (including shielded) (not AMP) 3. Long-Lasting for Use: RJ45 Crimping Tool is made of heavy-duty steel so it delivers exceptional torque without bending. Black oxide finish resists rust and corrosion, making our wire terminal crimper an outstanding electronics tools for crimping 4. Good Workmanship: The blades are made of high quality steel blade, sharp and replaceable which maintains razor sharpness. This cat6 crimping tool is made of industrial steel and Polypropylene, it is durable and safe 5. Helpful Wiring Guide: Wiring guide diagram on ethernet tool can helps you arrange the wires easily and minimize wiring errors