Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune combines classic open-gear vintage styling with modern precision engineering and smooth performance. Featuring an open-gear architecture with a worm gear drive, it delivers exceptional tonal resonance across acoustic and classic guitar builds.
A precise 1:18 gear ratio provides pinpoint tuning stability and durable, long-term operation. Engineered without synthetic polymer coatings, the ultra-precise contact surfaces allow wear-free stick-slip performance while maximizing acoustic coupling to the instrument's headstock.
Designed to fit standard production instrument dimensions, this tuning machine features permanently locked, sealed screw joints and countersunk mounting holes for secure attachment and maintenance-free reliability.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.11 lb |
| 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) including bushing |
| 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) |
| Design | Open Gear |
