Graph Tech Ratio 3 + 3 Waffle-Back Vintage Machine Heads Nickel Finish with Keystone Buttons-PRN-4424-N0A right-handed set of Ratio Tuned Machine Heads in waffle-back look for electric guitar that use 3+3 side tuners. Open backs.
Fits vintage style guitars, please check measurements in the photos.
Ratio - Tuned Machine Heads incorporate different string gauges into the tuning equation. From Low E to High E 39:1, 24:1, 20:1, 35:1, 20:1, 12:1.
We balanced the gear ratios to each string simplifying the tuning process.
With Ratio, a half turn is a semi-tone! Every string reacts the same to any tuning adjustment. Predictable, precise tuning on every string.
Please note that these waffle-back tuners are made to a vintage specification (for 11/32” peghead holes) and will not be a direct replacement for a modern tuner.
