PC Modding crimp connectors and tools – Matt's Tech Pages
RJ45 Crimping Tool Ethernet Crimper for Cat6 Cat5 Cat5e RJ45 Pass Through Connectors and RJ12 Ends Comes with 20PCS RJ45 Cat6 Connectors and Replacement Blade - - Amazon.com
Deluxe Coaxial Crimp Tool with .100", .128" and .429" Hex Die - HT-CRIMP03