The assembly tool HX-TT-1 consists of a crimp tool and a press tool to assemble NP3TT-1-* and NP3TT-AU-* plugs.
Most Neutrik TT plugs purchased in the U.S. require shield termination via a standard RG58 crimp tool. However, two varieties of TT plugs—NP3TT- 1-* and NP3TT-AU-*—require the use of Neutrik’s HX-TT-1 crimping and press tool.