Gotoh 510 top of the line super tuning machine heads high quality tuners with precision tuning in a small footprint. 18:1 Gear Ratio for super fine tuning accuracy. 6 in line bass side tuners (right handed guitars). Staggered posts gives each string the ideal break angle over the nut. MAGNUM-LOCK TRAD Thumbscrew-style locking tuner.
It is simple and easy. 45 degree offset mounting hole. 13/32 [10mm] headstock holes required for installation. Includes threaded bushings, washers and screws.