Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single combines refined vintage aesthetics with precise tuning response and smooth performance. Featuring an open-gear design with a worm gear mechanism, this tuning machine delivers exceptional tuning stability without the use of synthetic polymer coatings, allowing for natural acoustic resonance.
An ultra-precise 1:18 gear ratio provides pinpoint tuning accuracy, durability, and frictionless movement. Permanently locked, sealed, and countersunk screw fittings ensure maintenance-free, wear-resistant operation while enhancing tone transfer to the headstock.
Engineered to standard instrument dimensions for straightforward installation and replacement, each unit includes mounting screws and a hexagonal press-in bushing for solid headstocks.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Weight | 0.11 lb |
| Single Tuner Weight | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) |
| Button Dimensions (Butterbean) | 0.8 x 0.54 x 0.41 in |
| Button Dimensions (Standard) | 0.69 x 0.54 x 0.24 in |
| Included Bushing | Hexagonal press-in bushing (0.35 in outer diameter, 0.24 in inner diameter) |
| Included Screws | 2x countersunk mounting screws (M2.2 x 11 mm / 0.43 in) |
