This is a wonderful coil winding tool to build perfect coils for regular and subohm vaping.
With the All in One Coil Jig by UD, you will be able to easily build coils for any RDA or RBA.Including 4 different diameter jigs: 2.0mm, 2.5mm, 3.0mm & 3.5mm, and each jig comes with a screw driver head.