Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single Guitar Tuning Machine combines vintage open-gear aesthetics with precise tuning performance and velvety smooth action. Engineered with a 1:18 gear ratio, it provides exceptional accuracy and long-term durability for demanding players.
Crafted without synthetic polymer coatings, the ultra-precise contact surfaces ensure optimal stick-slip performance while allowing the instrument to resonate naturally. Permanently locked and sealed screw connections guarantee wear-free and maintenance-free operation over time.
Designed to fit standard production instrument dimensions, this tuner features countersunk screw holes for secure mounting and enhanced tone transmission. Solid headstock versions include a precision hexagonal press-in bushing and mounting screws for direct installation.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.11 lb |
| Button Dimensions (Butterbean) | 0.80 x 0.54 x 0.41 in |
| Button Dimensions (Other) | 0.69 x 0.54 x 0.24 in |
| Included Screws | 2 x M2.2 x 0.43 in countersunk mounting screws |
| Included Bushing | Hexagonal press-in bushing (0.35 in outer diameter, 0.24 in inner diameter) |



















