Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune represents the ultimate fusion of vintage design, precise tuning, and smooth performance. It features a perfected, open-gear construction with an exposed worm and gear mechanism engineered for long-lasting reliability.
With a precise 1:18 gear ratio, this tuning machine provides unmatched accuracy and tuning stability. Built without synthetic coatings, the ultra-precise contact surfaces ensure optimal resonance and wear-free interaction across your instrument.
Designed to fit standard production instrument dimensions, it includes permanently locked and sealed screw joints along with countersunk mounting holes for a secure fit and excellent tone transmission.
| 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 (W x H x D) | 0.8 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Product Type | Guitar Tuning Machine |
| Design | Open-Gear |
| Weight | 0.11 lb |





















