Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single tuning machine combines classic vintage open-gear aesthetics with precise tuning performance and smooth action. Engineered with a 1:18 gear ratio, it provides exceptional tuning stability and long-lasting durability across a wide range of playing styles.
Featuring high-precision contact surfaces without synthetic coatings, the mechanism creates optimal stick-slip interaction to maintain tonal resonance. Its permanently locked, sealed joints ensure reliable operation without routine maintenance, wear, or material aging.
Standardized serial production dimensions allow for straightforward installation or direct retrofitting on modern and traditional instruments. Countersunk mounting holes provide a solid attachment to the headstock for uncompromised acoustic energy transfer.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Gear Design | Open Gear with Worm Drive |
| Mounting Type | Screw-in Bushing / Hexagonal Bushing |
| Weight | 0.1 lb |
| Button Dimensions (Butterbean) | 0.8 x 0.5 x 0.4 in |
| Button Dimensions (Standard) | 0.7 x 0.5 x 0.2 in |
| Mounting Bushing Outer Diameter | 0.35 in |
| Mounting Bushing Inner Diameter | 0.24 in |
| Included Screws | 2 x M2.2 x 11 mm Countersunk Screws |
