Brand TAIWAIN Brand is a professional manufacturer of commercial and household tools. We insist on using the best materials, the best quality, and the best price to serve our customers. Function explanation TAIWAIN tool kit allows users to quickly and easily install computers and network adapters, repair network cables and test the network. *Cable Crimper --Suitable for Cat5, Cat5e, and Cat 6 cable with 8P8C plugs; Great for RJ45,RJ11,RJ12 cable and phone installation and any other electrical wiring work. --The cable crimper has three holes for cutting, 8P, 6P. and easy to strip the outer skin of the cable. Their blades are sharp and rust resistant --crimping tool is designed with a non-slip grip, a razor for wire cutting and a die head assembly --Labor-saving and convenient, heavy duty steel construction brings you decades of reliable crimping capabilities. *Cable Tester --This tester is designed to handle twisted pair, straight, and Cat5/Cat5e/Cat6/UTP cables with RJ-11 or RJ-45 connectors to test for breaks or signal loss, wrong connection, short circuit and open circuit in your internet or LAN connection. --Easy-to-read LED indicator lights alert you to possible gaps in your si