Was super 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 Kayfun with the drill bit inside to keep the coils from warping. Make sure you wrap the coils so that the top left lead in on the bottom of the coil. I wrapped the ends around the screws once clockwise, then tightened the screws while holding the drill bits in place.
Dual micro coil (nomally single) with 9/10 wraps of 28 gauge kanthal wire around a 1/16" drill bit at 0.62 Ohms with cotton wicks on a Kayfun RBA for a smooth, heavy vape with good flavor.
Heavy vape from using dual micro coils.
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