Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage design with precise tuning behavior and ultra-smooth performance. Built as an open-gear tuning machine with an exact worm gear mechanism, it provides reliable stability and resonance for your instrument.
Featuring a 1:18 gear ratio, this tuner delivers exceptional accuracy and extended longevity. The deliberate omission of synthetic coatings ensures pure acoustic coupling and prevents wear or degradation over time.
Permanently locked and sealed screw joints provide maintenance-free operation and exceptional durability. Engineered to standard instrument dimensions, it fits seamlessly onto serial instruments while optimizing tone transmission.
| Brand | Schaller |
| Model | GrandTune (GT-Single) |
| Product Type | Single Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Weight per Single Tuner | 0.04 lb (Koa), 0.04 lb (Perloid), 0.04 lb (Galalith, Ebony), 0.05 lb (Snakewood), 0.06 lb (Butterbean) |
| Button Dimensions (WxHxD) | 0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |



















