T-taps are used to tap into an existing wire with no special tools needed. Closing the quick splice connector pushes the copper contact through the wire insulation, and makes a reliable electrical connection with the wire strands. A connection to the wire that can be accessed with a nylon insulated male spade terminal (1/4"). This is a quick and super efficient way to tap into an existing wire. Such a connection that can be easily disconnected later.<br><br> Wire t-taps are widely used in automotive, motorcycle, audio, and home electrical projects.