Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single combines refined vintage aesthetics with precise tuning response and smooth performance. Engineered as a classic open-gear tuning machine, it features an exposed worm gear and gear wheel construction built to standard production instrument dimensions for seamless installation or replacement.
Featuring an 18:1 gear ratio, this tuning machine delivers high tuning accuracy and lasting stability. The design omits synthetic polymer coatings across its contact surfaces, establishing direct acoustic coupling and optimal resonance transfer without susceptibility to wear or aging over time.
Equipped with permanently locked, sealed screw joints and countersunk mounting holes, the assembly provides secure attachment and maintenance-free operation. Each unit includes recessed mounting screws and a hexagonal press-in bushing for solid headstock installations.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Machine | 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) |
| Product Weight | 0.11 lb |
