Graph Tech PRL-8621-B7 Ratio 3+4 Power Locking Tuners Machine Heads (Black)

A right-handed set of Locking Ratio tuners for electric guitars that use 3+4 side tuners. Fits many Gibson, Epiphone style guitars and many acoustic guitars if you want to upgrade to a set of locking tuners. A two-pin housing that can be used as is or with our patented InvisoMatch mounting plates. 4 different sets of brushed aluminum InvisoMatch mounting plates are included to make installation on most guitars quick and precise using your existing screw mounting holes. You can upgrade to matching finish InvisoMatch plates. Ratio – Tuned tuners incorporate different string gauges into the tuning equation. From low B to high E 48:1, 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.