Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single combines refined vintage aesthetics with precise tuning performance and velvety smooth operation. Designed with open gearing and a premium worm gear architecture, it features a 1:18 gear ratio that delivers exceptional accuracy and long-term durability. Free of synthetic coatings, this tuning machine resonates seamlessly with your instrument to preserve natural acoustic tone.
Built with ultra-precise contact surfaces, the GrandTune produces optimal stick-slip properties without wear or aging over time. Permanently locked, sealed screw joints ensure dependable, maintenance-free operation under constant playing conditions. Standard dimensions match common production instruments, allowing for straightforward installation or replacement.
Recessed screw holes provide a secure hold and optimal sound transfer directly into the headstock. Each single unit includes mounting screws and a hexagonal press-in bushing engineered for solid headstock configurations to ensure perfect gear alignment.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Weight per Single Unit | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) including bushing |
| 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 (8.8 mm) |
| Included Bushing Inner Diameter | 0.24 in (6.1 mm) |
| Matching Post Diameter | 0.24 in (6.0 mm) |
| Mounting Screws | M2.2 x 11 mm (0.09 x 0.43 in) |
| Item Weight | 0.11 lb |
