Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single Guitar Tuning Machine combines vintage aesthetics with precise tuning performance. Built with an open gear and worm screw design, it offers classic styling alongside modern engineering for discerning musicians and luthiers.
A precise 1:18 gear ratio delivers smooth and accurate tuning stability. The design eliminates synthetic polymer coatings, relying instead on ultra-precise contact surfaces to facilitate resonance and wear-free operation across years of use.
Engineered to standard instrument dimensions for straightforward replacement or new builds, this tuning machine features sealed, permanently locked screw fittings and countersunk screw holes for solid mounting and direct acoustic transmission.
| Brand | Schaller |
| Model | GrandTune Einzelmechanik (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Button Dimensions | 0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Mounting Type | Countersunk screw mount with press-in bushing |



















