Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune combines classic vintage styling with modern precision engineering and smooth performance. Featuring an open-gear architecture with a worm gear mechanism, this tuning machine delivers exceptional tuning stability and tactile response.
A precise 1:18 gear ratio provides accurate tuning control and long-lasting reliability. Built completely without synthetic polymer coatings, the mechanism resonates naturally with the instrument and utilizes wear-free contact surfaces for consistent performance.
Engineered to standard instrument dimensions for straightforward installation and replacement, each tuner includes permanently locked screw joints and countersunk mounting holes to ensure direct mechanical coupling and optimal acoustic transfer.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Gear Ratio | 1:18 |
| Weight per Unit | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) |
| Button Dimensions | 0.8 x 0.5 x 0.4 in (Butterbean), 0.7 x 0.5 x 0.2 in (all other buttons) |
| Included Hardware | 2 countersunk mounting screws (M2.2 x 11 mm), 1 hexagonal press-in bushing (8.8 mm outer diameter, 6.1 mm inner diameter) |
| Product Weight | 0.11 lb |
