Schaller GrandTune Guitar Tuning Machine

The Schaller GrandTune combines refined vintage aesthetics with precise tuning performance and ultra-smooth operation. Designed as a perfected open-gear tuning machine, it features an exposed worm gear mechanism engineered for lasting resonance and direct tonal transfer without synthetic coatings.
Equipped with an accurate 1:18 gear ratio, this tuning machine provides exceptional tuning stability, fine adjustments, and wear-free operation. Ultra-precise contact surfaces and permanently sealed screw joints ensure smooth stick-slip performance without polymer degradation or regular maintenance requirements.
Engineered to standard instrument dimensions for effortless installation and retrofitting, it features countersunk mounting holes for robust acoustic coupling. Each unit includes countersunk mounting screws and a hexagonal press-in bushing for solid headstocks.
Brand
Schaller
Model
GrandTune Einzelmechanik (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Design
Open Gear
Button Dimensions (Butterbean)
0.80 x 0.54 x 0.41 in
Button Dimensions (Standard)
0.69 x 0.54 x 0.24 in
Bushing Type
Hexagonal Press-In Bushing
Bushing Outer Diameter
0.35 in
Included Screws
2 x M2.2 x 11 mm Countersunk Screws