Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage aesthetics with precise tuning response and smooth performance. Engineered as an open-gear tuner with an ultra-precise worm gear mechanism, it delivers dependable tuning stability and refined control.
Featuring an 18:1 gear ratio, the GrandTune provides fine-tuning accuracy and lasting durability without synthetic coatings, allowing optimal acoustic resonance throughout the instrument. Its wear-free design ensures smooth, reliable mechanical movement over extended play.
Built to match standard instrument specifications, this tuning machine enables straightforward retrofitting and installation. Countersunk screw holes and precision-fitted contact points provide secure mounting and excellent acoustic transfer.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Single Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Weight | 0.11 lb |
| Mounting Screws | 2 x countersunk mounting screws (M2.2 x 11) |
| Bushing Outer Diameter | 0.35 in (8.8 mm) |
| Bushing Inner Diameter | 0.24 in (6.1 mm) |
| String Roller Deluxe Bearing Diameter | 0.39 in (10 mm) |
| String Roller Deluxe Shaft Diameter | 0.39 in (9.8 mm) |
