Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines refined vintage aesthetics with precise tuning stability and ultra-smooth operation. Designed as an open-gear tuning machine, it features a perfected worm gear architecture engineered for premium instruments.
Featuring an 18:1 gear ratio, this tuner delivers exact adjustment accuracy and long-lasting durability. The absence of synthetic coatings ensures pure acoustic resonance and optimal contact throughout the headstock.
Crafted to standard serial instrument specifications, it allows straightforward installation and replacement. Wear-free components and permanently sealed joints guarantee maintenance-free reliability over years of playing.
| Brand | Schaller |
| Model | GrandTune (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| 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) |
| 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) |
| Included Mounting Screws | 2 x Countersunk Mounting Screws (M2.2 x 11) |





















