Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage aesthetics with precise tuning performance and velvety smooth action. This perfected open-gear tuning machine features a classic worm and gear construction designed for resonance and longevity.
A precise 1:18 gear ratio delivers fine-tuning accuracy without synthetic coatings, creating an uninterrupted acoustic coupling with the instrument headstock. The wear-free construction ensures maintenance-free operation and lasting durability.
Engineered to standard instrument dimensions for straightforward installation, each tuner features countersunk screw holes and permanently sealed fittings for optimal sound transmission and tuning stability.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Tuner Type | Open Gear |
| Weight | 0.11 lb |
| Mounting Hardware | 2 countersunk mounting screws per tuner (M2.2 x 11) |
| Bushing Specifications | 1 hexagonal press-in bushing (outer diameter 0.35 in, inner diameter 0.24 in, fits 0.24 in post) |





















