There are two sizes on this string winder that can be used for the tuners, however, these are too big, or too small.
Using this tool on my Ibanez caused some scratches on the tuner, so I would definitely not recommend this for an electric guitar. Not only did it scratch the tuner it is used on, but also the tuners next to it because it is too thick.
The tool itself is sturdy, so for an acoustic guitar or a guitar with more spacing between the tuners, this should do the trick.
+ Material OK
- Scratches on tuner and nearby tuners.