Schaller GrandTune Single Guitar Tuning Machine

The Schaller GrandTune Single Guitar Tuning Machine combines vintage open-gear aesthetics with modern high-precision engineering. Built with a 1:18 gear ratio, it delivers velvety smooth performance, precise tuning response, and outstanding long-term tuning stability for acoustic, electric, and classical instruments.
Crafted without synthetic polymer coatings, the ultra-precise contact surfaces provide optimal stick-slip interaction and maximum resonance transfer across the headstock. Sealed and permanently locked screw joints ensure reliable, wear-free, and maintenance-free operation across years of play.
Designed to fit standard production headstock dimensions, each tuner installs seamlessly on solid or slotted headstocks. Recessed mounting screw holes and dedicated press-in bushings ensure rigid coupling and direct tonal transmission directly to the wood.
Brand
Schaller
Model
GrandTune Single (GT-Single)
Product Type
Single Guitar Tuning Machine
Gear Ratio
1:18
Weight
0.1 lb
Bushing Outer Diameter
0.35 in
Bushing Inner Diameter
0.24 in
Design
Open Gear