About this item 10-in-1 Network Installation Kit: Includes RJ11/12/45 network crimper, punch down tool, pliers, screwdriver, knife, and LAN cable r High Quality Crimping Tool: RJ11/RJ12/RJ45 crimping/stripping/twisting tool is perfect for Cat5/Cat5E/Cat6/Cat7/Cat8 connectors and cables Network Cable r: Tests connection for RJ11/RJ45 telephone or LAN/ethernet Cat5/Cat5e/Cat6/ network cables for any data transmission and installation job (9 volt batteries not included) Punch Down Installation Tool: With 66 &110/88 blades for work on high-volume punch downs of Cat5 to Cat6A network cable installation and termination Portable And Conveniently Packed: Tools are organized in a lightweight hard case suitable for any installation, maintenance and repair network jobs