Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single guitar tuning machine delivers the ultimate combination of stylish vintage aesthetics, precise tuning behavior, and velvet-smooth performance. Built with an open gear and worm screw design, it offers a perfected classical tuning experience without synthetic coatings to maintain natural instrument resonance.
A precise 1:18 gear ratio ensures unmatched tuning accuracy and long-term durability. Engineered with ultra-precise contact surfaces and permanently locked, sealed screw joints, the mechanism guarantees wear-free, maintenance-free operation across years of playing.
Designed to standard instrument dimensions for effortless installation and replacement, each tuner includes countersunk screw holes and high-grade mounting hardware for solid resonance transmission and tuning stability.
| 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 |
| Mounting Screws Included | 2 x Countersunk screws (M2.2 x 11) |
| Bushing Included | 1 x Hexagonal press-in bushing (OD 0.35 in, ID 0.24 in) |



















