Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage design, precise tuning response, and ultra-smooth performance. This perfected open-gear tuning machine features an exposed gear and worm drive mechanism engineered for premium acoustic and electric guitars.
With a precise 1:18 gear ratio, the GrandTune delivers outstanding accuracy and durability. The complete absence of synthetic polymer coatings ensures optimal resonance transfer across the headstock, allowing your instrument to achieve its full tonal potential.
Built with permanently locked, sealed screw joints and wear-free contact surfaces, this tuning machine provides maintenance-free longevity. Countersunk screw holes ensure secure mounting and flawless acoustic transmission.
| Brand | Schaller |
| Model | GrandTune Einzelmechanik (GT-Single) |
| Gear Ratio | 1:18 |
| Product Type | Guitar Tuning Machine |
| Tuner Type | Open Gear |
| 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) |
| Button Dimensions (W x H x D) | 0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Included Bushing Outer Diameter | 0.35 in |
| Mounting Screws Included | 2 x Countersunk screws (M2.2 x 11 mm) |





















