Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage aesthetics with precise tuning performance and velvety smooth action. Designed with an open-gear architecture and precision worm gear, it delivers refined tuning stability and resonance without the use of synthetic polymer coatings.
Featuring an 18:1 gear ratio, the GrandTune provides exact control and long-lasting durability. Ultra-precise contact surfaces and permanently sealed, maintenance-free screw joints ensure zero wear, allowing the tuning machine to age gracefully alongside fine instruments.
Engineered to standard instrument dimensions for trouble-free installation or replacement, each unit includes countersunk screw holes for enhanced acoustic transmission and secure mounting on classic and modern headstocks alike.
| Brand | Schaller |
| Model | GrandTune Einzelmechanik (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 (Standard) | 0.69 x 0.54 x 0.24 in |
| Included Bushing Outer Diameter | 0.35 in |
| Included Bushing Inner Diameter | 0.24 in |
| Mounting Screws | M2.2 x 11 mm (2 pcs) |



















