Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage aesthetics with precise tuning performance and velvety-smooth operation. Designed with an open-gear configuration and precision worm screw, this classic tuning machine delivers exceptional tuning stability without the use of synthetic polymer coatings.
Featuring an accurate 1:18 gear ratio, the GrandTune ensures fine tuning control, durability, and resonance transfer directly to the instrument headstock. The ultra-precise contact surfaces provide smooth stick-slip performance and permanently locked screw joints for maintenance-free longevity.
Engineered to standard instrument dimensions for straightforward installation or replacement, each unit includes mounting screws and a hexagonal press-in bushing for solid headstock setups.
| Brand | Schaller |
| Model | GrandTune (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.11 lb |
| Button Dimensions (Butterbean) | 0.8 x 0.5 x 0.4 in |
| Button Dimensions (Standard) | 0.7 x 0.5 x 0.2 in |
| Mounting Screws | 2 x Countersunk Mounting Screws (M2.2 x 11) |
| Bushing | Hexagonal Press-In Bushing (0.35 in Outer Diameter) |
