With its cutting edge Velvet-Tec* technology the Schaller GrandTune® is the ultimate combination of tasteful design and velvet-smooth feel and touch. GrandTune® offers a precision and longevity second to none. Sound quality, tuning stability and performance define this as the superior tuning machine. 18:1 gear ratio supports precise, smooth tuning. Hyper-accurate gear joints and fittings without polymer coatings present perfect stick-slip-performance and zero wear and slackening. Screw joints are permanently locked, sealed and covered for zero degradation and maintenance-free performance. Standard dimensions for easy installation. Countersunk screw holes for solid fit and perfect sound coupling. GrandTune® – the most advanced machine head ever built! 3L3R set