its top secret........ just kidding my super hitech tools consist of a piece of 1/4" and 5/16" pieces of brass tubeing. i got 1' brass pieces of each for 5$ at orchard. i just took some tin snips and cut teeth on the ends of the tubeing. i dug out about 1/2" of wire with a tiny screwdriver and some small needle nose pliers. then took the bigger tube pushed it in the hole and kept twisting for a while. that breaks the epoxy and outer rubber shell of the wire down. then switch to the 1/4 tube and do the same thing. the smaller tube grinds up the rest of of the wire up and pulls it out. switch back and forth a couple times and youll get it. it exposes a metal spike inside the coil. about 1 3/8" down. im just gonna shove fresh wire in the coil and epoxy it back in.