Features Cable Tester: The tool kit contains a multifunctional cable tester for testing telephone or network cables with a drop and light proof design. Professional Set: This professional network Ethernet crimping pliers saves time and effort and greatly improves work efficiency for RJ45, RJ11, RJ12 connectors. Crimping Pliers: There are 3 functions of stripping, cutting and crimping, tool holder head with full metal laminated, handle non slip, pliers with ratchet teeth, save time and effort, high efficiency of crimping. Portable Storage Bag: The kit fits securely in a handy tool pouch that prevents tool damage. You can use these tools at home, in the office, in the laboratory, in the dormitory, in the repair store and in everyday life. 9 in 1: The complete 9 in 1 crimping tool design allows you to cut, strip and crimp with just one Ethernet crimper. Specification: Item Type: Network Tool Kit Material: Steel Crystal Head Crimping Pliers Specifications: 4P, 6P, 8P Tester Battery: 1 section of 9V dry battery (shipped without battery) Wire Knife Range of Application: Telephone lines, network cables, monitoring lines Coaxial Stripping Pliers Range of Application: coaxial cable RG58, RG59, RG62, RG3C, RG4C  Network Stripping Pliers: Round wire (UTP and STP), flat wire and multi transmission line 3.2mm-9.0mm Cable tester test method. 1. twisted pair 1, 2, 3, 4, 5, 6, 7, 8, G by root (pair) test, can determine which one (pair) wrong line, short circuit and open circuit. 2. Switch "OFF" for off, ON for normal test speed, "S" for slow test speed. 3. Twisted pair test: turn on the power, the network plug into the main tester and remote tester, respectively, the host indicator lights from 1 to G flashing sequentially, the following chart example. Main tester: 1, 2, 3, 4, 5, 6, 7, 8, G Remote tester: 1, 2, 3, 4, 5, 6, 7, 8, G (RJ45) 1, 2, 3, 4 (RJ11) Package List: 1 x 3 Use Network Cable Plier 1 x Snap Wire Knife 1 x Wire Stripper 1 x Cable Stripping Plier 1 x Cable Stripping Knife 1 x Cable Tester 2 x Screwdriver 10 x RJ Connector 1 x Storage Box 1 x Storage Bag Package List 1 x 3 Use Network Cable Plier 1 x Snap Wire Knife 1 x Wire Stripper 1 x Cable Stripping Plier 1 x Cable Stripping Knife 1 x Cable Tester 2 x Screwdriver 10 x RJ Connector 1 x Storage Box 1 x Storage Bag