Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single Guitar Tuning Machine delivers the ultimate combination of vintage aesthetics, exact tuning behavior, and velvet-smooth performance. Crafted as a perfected open-gear tuning mechanism, it features an exposed worm gear and gear wheel designed to provide optimal resonance across instruments.
Equipped with an ultra-precise 1:18 gear ratio, this tuning machine ensures lasting tuning stability and accurate adjustments. Its polymer-free contact surfaces and permanently locked, sealed screw joints ensure smooth, wear-free, and maintenance-free operation throughout years of playing.
Designed around standard factory instrument dimensions, it enables straightforward installation and replacement. The recessed screw holes ensure a firm hold and maximum acoustic coupling to the headstock.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Item Weight | 0.11 lb |
| Mounting Hardware Included | 2 countersunk mounting screws, press-in bushing (solid headstock version) |



















