Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage design with precise tuning behavior and velvet-smooth performance. This perfected open-gear tuning machine features classic open architecture with a precision-machined worm gear for exceptional tuning stability.
A precise 1:18 gear ratio offers unmatched accuracy and longevity, while the absence of polymer coatings creates ideal stick-slip performance without wear or aging. Permanently locked and sealed screw joints provide maintenance-free operation across the life of your instrument.
Engineered to standard instrument dimensions for trouble-free installation and replacement, this tuning machine features countersunk screw holes for solid mounting and optimal acoustic resonance transfer.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Model Number | GT-Single |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Tuner Type | 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) including press-in bushing |
| Button Dimensions (WxHxD) | 0.8 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Product Weight | 0.11 lb |



















