Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines classic vintage aesthetics with precise tuning performance and smooth operation. Designed with an open gear and worm screw configuration, it delivers superior acoustic resonance and reliable tuning stability.
Featuring an 18:1 gear ratio, this tuning machine provides ultra-precise, wear-free adjustment without synthetic polymer coatings. Permanently locked, sealed screw joints ensure long-lasting, maintenance-free performance across diverse playing conditions.
Crafted to standard production guitar dimensions for straightforward installation or replacement, it includes recessed screw holes for maximum structural hold and optimal tone transmission.
| Brand | Schaller |
| Model | GrandTune Einzelmechanik (GT-Single) |
| Gear Ratio | 1:18 |
| Weight per Single Tuner | 0.6 oz (Koa), 0.7 oz (Perloid), 0.7 oz (Galalith, Ebony), 0.7 oz (Snakewood), 0.9 oz (Butterbean) including 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 |
| Weight | 0.11 lb |
| Product Type | Guitar Tuning Machine |



















