Its primary utility is to do the actual 'crimping' part of compressing/crimping the tiny gold pins in the RJ45 connector onto the ethernet cables. It also has blades that can be used to cut or strip wires.
The crimping process ensures that the wire is secured firmly within the terminal so that it can withstand the use for which it is designed. A joint with insufficient compression will not retain the wire within the terminal with enough force to prevent it from falling out or being pulled out.
What's Included :
1 x RJ45 Network Crimper
1 x Wire Stripper