COMPLETE NETWORK MAINTENANCE TOOLS CONVENIENT FOR YOUR WORK: 11-in-1 tool kit includes a crimping pliers, network cable tester, wire stripping knife, flat /cross screwdriver, stripping pliers knife, punch-down tool, some phone cable connectors and RJ45 connectors. PROFESSIONAL NETWORK CRIMPER, SAVE TIME AND EFFORT, GREATLY IMPROVE WORK EFFICIENCY: 3-in-1 crimping/cutting/stripping tool, which is good for RJ-45, RJ-11 RJ-12 connectors, and suitable for Cat5 and Cat5e cable with 8P8C, 6P6C and 4P4C plugs. (Attention Please: This crimper can not crimp pass through connectors) MULTI-FUNCTION CABLE TESTER FOR TESTING TELEPHONE OR NETWORK CABLES: For RJ-11, RJ-12, RJ-45, CAT5, CAT5e, 10/100BaseT, TIA-568A/568B, AT T 258-A; 1, 2, 3, 4, 5, 6, 7, 8 LED lights. Powered by one 9V battery (not included). PERFECT DESIGN: Designed for use with network cable test, telephone lines test, alarm cables, intercom lines and speaker wires functions. PORTABLE AND CONVENIENT TOOL BAG FOR CARRYING EVERYWHERE