This upgraded version of micro coil jig,it is a compact and handy device for vapers who prefer building their own coils.
The coil tool is easy to use: using the numbered guide on the handle of the tool, simply select your preferred size from five different diameters and begin wrapping until you have achieved the desired number of wraps.
There are 5 diameters users can choose: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm.
The biggest difference of this jig is, a screwdriver head is built, so user don't have to buy a screwdriver separately.