Was fairly easy to build. I used two 1/16" drill bits. I wrapped my coils around them, torched and pinched them, then attached them one at a time to the IGO-W. I did one side at a time, inserting the drill bit inside to keep the coils from warping and to keep them lined up with each other. It doesn't matter which way you wrap the coils, but I did mine so that the coil end was on the top for the center post. I positioned the coils close to the edge near the air hole, then tightened the screws while holding the drill bits in place. Then I used a small pair of dykes (does anyone call them that anymore) to trim the excess leads. I also increased the air hole to 1/16".
Quad micro coil (nomally dual) with 6/7 wraps of 30 gauge kanthal wire around a 1/16" drill bit at 0.34 Ohms with cotton wicks on an IGO-W RDA for a hard, super heavy vape with full flavor.
Super heavy vape from using quad micro coils.
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