Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune combines refined vintage aesthetics with precise tuning performance and ultra-smooth operation. Designed as an open-gear tuning machine with a精密 worm drive, it provides exceptional acoustic resonance and tonal integrity on premium instruments without the need for synthetic coatings.
Featuring an 18:1 gear ratio, the GrandTune offers velvet-smooth tuning stability and wear-free precision. The ultra-precise contact surfaces eliminate stick-slip friction while permanently sealed, locked screw connections ensure maintenance-free longevity over years of active playing.
Engineered to standard instrument dimensions for straightforward installation and replacement, this tuning machine features countersunk mounting holes for solid contact and optimal sound transmission.
| Brand | Schaller |
| Model | GrandTune Einzelmechanik (GT-Single) |
| Gear Ratio | 1:18 |
| Weight | 0.11 lb |
| Mounting Screw Size | M2.2 x 11 mm |
| Bushing Outer Diameter | 0.35 in |
| Bushing Inner Diameter | 0.24 in |
| Post Compatibility | 0.24 in post diameter |





















