Graph Tech Ratio 3x3 Locking Tuners - Black Contemporary - Open-Box

Open-box but never used. Comes with all hardware and original packaging. RATIO® patented gear technologyRATIO® - Calibrated 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. The PRL-8311, 8322, 8331, 8341, and 8351 are right-handed sets of Locking RATIO® Calibrated Machine Heads for electric guitars that use 3 x 3 tuners, such as Gibson style and PRS style guitars. A great upgrade over single-gear machine heads, such as Grover, Schaller, Sperzel, Kluson, etc. Gear ratio: unique for each string position - one turn-one tone Peg holes diameter required: 13/32" (10mm) String post diameter: 0.236" (6mm) String post length to string hole: 0.910” (23mm) Weight per single machine head: 0.083lbs (38