Cut a short length of the correct-color wire and strip a bit off each end. Begin by cutting the pigtail wire to a suitable length, generally between six and eight inches, to allow enough slack for comfortable work outside the electrical box. Once cut, use the wire strippers to remove approximately three-quarters of an inch of insulation from the end of the pigtail and the. If you have a damaged wire, cut this section using a wire cutter to leave the good part. If using a nylon closed-end or pigtail connector, you don't have to. The next step is to prepare the pigtail wires. This exposes the bare copper wire that. One crucial safety measure when making your own pigtail is that you must cut your scrap lengths from the same types of wire in the circuit. Did you make this project? Share it with us! You must be logged in to post a comment or add an I Made It.