A set of right-handed Ratio Tuned machine heads with a waffle look for electric guitar that uses 6 in-line side tuners. Open backs. Suitable for vintage style guitars (e.g. Fender Style). Ratio - Tuned tuners 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've balanced the gear ratios for each string, simplifying the tuning process. With Ratio, a half turn is a half step! Each string reacts the same to any tuning setting. Predictable and precise tuning on every string. Please note that our waffle backed tuners are made to a vintage specification (for 11/32" peghead holes) and will not be a direct replacement for a modern tuner.