Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage design with exact tuning accuracy and velvet-smooth performance. Featuring an open-gear architecture with a precision worm gear, this classic tuning machine is engineered for long-lasting tuning stability and resonant tonal transfer.
An 1:18 gear ratio provides unsurpassed tuning precision, while the intentional omission of synthetic polymer coatings creates perfect stick-slip movement without wear or aging. Permanently locked, sealed, and countersunk screw fittings ensure a secure fit and maintenance-free operation across the life of your instrument.
Designed around standard production instrument dimensions, these tuning machines allow for straightforward installation and replacement on solid or slotted headstocks.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Gear Ratio | 1:18 |
| Weight per Single Tuner | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) including bushing |
| Button Dimensions | 0.8 x 0.5 x 0.4 in (Butterbean), 0.7 x 0.5 x 0.2 in (all other buttons) |
| Weight | 0.11 lb |
