Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single delivers a refined blend of vintage open-gear aesthetics, precise tuning action, and smooth performance. Engineered with an open gear and worm architecture, it provides an exact 1:18 gear ratio for fine-tuning stability and lasting durability across all playing styles.
Built without synthetic polymer coatings, the ultra-precise contact surfaces create pure resonance and smooth stick-slip-free movement that will not wear or age. Permanently locked, sealed screw joints ensure maintenance-free reliability, while countersunk screw holes provide maximum sound transmission and secure anchoring.
Designed to fit standard production instruments, this individual tuning machine installs seamlessly as an upgrade or direct replacement. Each single tuner for solid headstocks includes two countersunk mounting screws and an 8.8 mm hexagonal press-in bushing for complete stability.
| Brand | Schaller |
| Model | GrandTune Einzelmechanik (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.11 lb |
| Included Mounting Screws | 2 x countersunk mounting screws (M2.2 x 11) |
| Included Bushing | 1 x hexagonal press-in bushing (outer diameter 0.35 in, inner diameter 0.24 in for 0.24 in post) |



















