Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single delivers a refined fusion of classic vintage aesthetics, precise tuning stability, and exceptionally smooth performance. Engineered with an open-gear design and precision worm screw, it serves as a perfected traditional tuning machine for discerning musicians and luthiers.
Featuring an 18:1 gear ratio, this tuning machine provides meticulous tuning accuracy and lasting durability. The deliberate absence of synthetic polymer coatings creates ideal stick-slip properties and ensures natural instrument resonance without wear or material degradation over time.
Built with permanently locked and sealed screw connections for maintenance-free operation, the GrandTune is sized to standard production instrument dimensions for seamless installation or replacement. Countersunk screw holes ensure secure mounting and optimal acoustic transmission.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 18:1 |
| Weight per Single Tuner | 0.6 oz (Koa), 0.7 oz (Perloid), 0.7 oz (Galalith, Ebony), 0.7 oz (Snakewood), 0.9 oz (Butterbean) |
| Button Dimensions (W x H x D) | 0.8 x 0.5 x 0.4 in (Butterbean), 0.7 x 0.5 x 0.2 in (all other buttons) |





















