Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune combines classic vintage styling with exact tuning precision and velvety-smooth performance. Built as an open-gear tuner with an ultra-precise worm gear, it delivers a 1:18 gear ratio for fine-tuned accuracy and long-term durability on any instrument.
Crafted without synthetic polymer coatings, the GrandTune creates optimal stick-slip properties that eliminate wear and aging over time. Permanently locked, sealed screw joints ensure maintenance-free operation while countersunk screw holes provide solid anchoring and flawless resonance transfer.
Designed around standard production instrument dimensions for seamless installation and replacement, each single tuning machine includes countersunk mounting screws and an hexagonal press-in bushing for solid headstocks.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.1 lb |
| Included Hardware | 2 mounting screws (M2.2 x 11), 1 hexagonal press-in bushing (for solid headstock versions) |
| Design | Open Gear |



















