Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines refined vintage aesthetics with precise tuning stability and ultra-smooth operation. Designed as a perfected open-gear tuning machine, it features a precision gear and worm drive architecture crafted without synthetic polymer coatings for optimal acoustic resonance and wear-free performance.
Featuring a precise 1:18 gear ratio, this tuning machine provides exceptional accuracy and long-term durability. Permanently locked, sealed screw joints ensure maintenance-free performance, while standard factory instrument dimensions make installation and replacement seamless on solid or slotted headstocks.
Equipped with countersunk screw holes for solid anchoring and enhanced sound transmission, each single unit includes mounting screws and a hexagonal press-in bushing for solid headstock configurations. The wear-free design delivers seamless slip-stick action without degrading over time.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | GrandTune Einzelmechanik (GT-Single) |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Mounting Type | Screw-in / Press-in Bushing |
| Included Screws | 2 x M2.2 x 11 mm per unit |
| Bushing Outer Diameter | 0.35 in (8.8 mm) |
| Bushing Inner Diameter | 0.24 in (6.1 mm) |
| Button Dimensions (Butterbean) | 0.8 x 0.54 x 0.41 in (20.4 x 13.8 x 10.4 mm) |
| Button Dimensions (Standard) | 0.69 x 0.54 x 0.24 in (17.6 x 13.7 x 6.1 mm) |
