Ratio Guitar Tuning Machine Heads
Introducing Ratio - A new concept in precision tuning, by Graph Tech Guitar Labs
PREDICTABLE, PRECISE TUNING, RETUNING AND OPEN TUNINGS.
Ratio® tuning feels natural. You don't have to think about which string you are tuning because they all feel and respond the same. No more overshooting the Low E or G. No more twisting away on the High E or D string. Open tunings have never been easier. String gauges such as light top, heavy bottom are no problem with Ratio®; they still do the same precision tuning.
FINISHES, OPTIONS, AND INSTALLATION
Each set of Ratio® comes with a complete set of Invisomatch mounting plates. These plates are designed to adapt the current set screw holes in your headstock to Ratio® posts. This makes installation quick and accurate, with no drilling required. That also means no permanent alterations to your beloved guitar.
Sets are available in a variety of styles and colors, in standard and locking versions.