Cable crimper: This computer repair tool kit is a 3-in-1 crimping/cutting/stripping tool, very suitable for RJ-45, RJ-11 RJ-12 connectors.Cable tester: The computer maintenance tool kit can test the corresponding twisted pair cables 1, 2, 3, 4, 5, 6, 7, 8 and grounding.Crimping tool: cat5 crimping tool can terminate 110 wires with cable stripping function; wire stripping pliers: used to cut 3.2-9MM network UTP/STP wires or cables.Multi-function: Professional Internet repair kit for stripping and testing telephone lines, alarm cables, computer cables, intercom cables, speaker wires and thermostat wires.Package includes: RJ45 crimping pliers wire stripping tool kit including crimping pliers, wire stripper, flat and flat screwdriver, wire stripper knife, punch tool, network cable tester and connector; comes with a zipper bag, It is convenient to store and organize all maintenance tools in order.Test whether the circuit works normally, or whether there is an open/short circuit. This instrument is designed to identify and track wires or cables without damaging the insulation; you can also use it to check short circuits and locate open circuits.Specially designed for testing telephone line, alarm line, computer line, speaker line and walkie-talkie function. Hand-held portable tools, easy to use on the go: The kit is equipped with convenient packaging tools to prevent product damage. You can use it in your home, office, laboratory, dormitory, repair shop and daily life.The stripping tool is a very basic tool, and it may be your first choice due to its simplicity, ease of use and ability to be used for different types of coaxial cables. It has dual blades that can be adjusted according to the specific preferences of any installer, and the blades will remain sharp for a long time, and the crimping tool is equally simple to use and very durable.Crystal head packing box random, don't accept the specified color.Colour: blackMaterial: metal + plasticPackage Contents:1 * Network tester setOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.