This network cable tester is for test of RJ11, RJ12, RJ45, 10/100 Base-T, TIA 568A /568B AT&T 258A, BNC, Cat 5, etc. The network computer maintenance fixing tool kit is for home use or professional use. Specifications: Crimper size: 193 * 100 * 15mm / 7.6 * 3.9 * 0.6in Crimper weight: 281g Cable tester size: 105 * 100 * 35mm / 4.1 * 3.9 * 1.4in Cable tester weight: 92g Cable tester battery: 9V (not include) Package size: 265 * 175 * 55mm / 10.4 * 6.9 * 2.2in Package weight: 903g Multi-purpose cable pliers features 1.Whether you need to upgrade your network or make fast repairs that will last, RJ45 Crimping Tool is your must-have wire terminal tool. 2.It cuts, strips and terminates RJ11/12 and RJ45 extended copper wires with a precision die head that provides 360 degrees of connector support during the crimping cycle. 3.Expanded surface area on contact drivers delivers full uniform crimp force for fast, accurate crimping. Dual-use Cable Tester features 1.Keep your network running smoothly by testing your cables to uncover problematic shorts, open wires, crossing pairs and other wiring mishaps. 2.Use for testing your homemade Ethernet patch cables to make sure they are in working order prior to connecting to your devices. 3.Tests twisted-pair straight & crossover cables: RJ45, RJ11 telephone cables and network cables. 4.Hand-held for portability.Requires one 9-volt battery (not included). Package list: 1 * Multi-purpose cable pliers 1 * Dual-use Cable Tester 1 * Electric pen screwdriver 1 * Adjust cable position knife 1 * Wire stripper 1 * Coaxial cable stripper 1 * Needle-nose pliers 4 * RJ45 Crystal head 5 * RJ11 Crystal head 4 * Crystal head protector 5 * Terminal block K1 1 * Portable tool kit