Schaller GrandTune Single Guitar Tuning Machine

The Schaller GrandTune Single combines refined vintage aesthetics with precise tuning response and smooth operation. Featuring an open-gear design and a 1:18 gear ratio, this tuning machine delivers high tuning stability and long-lasting durability.
Crafted without synthetic polymer coatings, the mechanism ensures optimal resonance transfer and consistent stick-slip performance across instruments. Permanently locked, sealed screw joints ensure wear-free, maintenance-free reliability over extended use.
Engineered to standard instrument dimensions for straightforward replacement or installation, each unit includes countersunk mounting screw holes for direct acoustic coupling and secure headstock placement.
Brand
Schaller
Model
GrandTune Single (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Weight
0.11 lb
Button Dimensions (Butterbean)
0.8 x 0.54 x 0.41 in
Button Dimensions (Standard)
0.69 x 0.54 x 0.24 in
Mounting Hardware
2 countersunk mounting screws (M2.2 x 11 mm)
Bushing Outer Diameter
0.35 in
Bushing Inner Diameter
0.24 in