Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single delivers a perfected balance of vintage open-gear aesthetics and modern precision engineering. Built without synthetic polymer coatings, it ensures pure acoustic resonance and velvet-smooth turning performance on acoustic, electric, and classical instruments.
Featuring an ultra-precise 1:18 gear ratio, this tuning machine provides exceptional tuning accuracy and long-term durability. Its permanently locked, sealed screw joints ensure completely wear-free and maintenance-free operation across years of demanding use.
Engineered to standard instrument dimensions for straightforward replacement and installation, the tuner includes countersunk screw holes and a robust hexagonal press-in bushing for maximum mechanical coupling and stability.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Gear Ratio | 1:18 |
| Type | Open-gear tuning machine |
| Button Dimensions (Butterbean) | 0.80 x 0.54 x 0.41 in |
| Button Dimensions (Standard) | 0.69 x 0.54 x 0.24 in |
| Weight per Single Tuner | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) including bushing |
| Product Weight | 0.11 lb |
| Included Hardware | 2 mounting screws (M2.2 x 11), 1 hexagonal press-in bushing (for solid headstock) |
