Schaller GrandTune Single Guitar Tuning Machine

The Schaller GrandTune Single delivers a perfected blend of vintage aesthetics, ultra-precise tuning response, and velvety smooth performance. Designed with an open-gear configuration and precision worm drive, it provides uncompromising tuning stability and durability without relying on synthetic polymer coatings.
Featuring a 1:18 gear ratio, this machine head offers exceptional accuracy and lasting wear-free operation. Permanently locked and sealed screw joints ensure maintenance-free reliability, while countersunk screw holes provide maximum stability and resonant sound transmission across your instrument.
Engineered to standard instrument dimensions for trouble-free installation, the GrandTune is an ideal replacement or upgrade for acoustic and electric guitars. Each unit includes countersunk mounting screws and standard hex press-in bushings for solid headstock installations where applicable.
Brand
Schaller
Model
GrandTune Single (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Product Weight
0.11 lb
Mounting Screws Included
2 x Countersunk Screws (M2.2 x 11 mm)
Hex Bushing Outer Diameter
0.35 in
Hex Bushing Inner Diameter
0.24 in
Butterbean Button Dimensions (W x H x D)
0.8 x 0.54 x 0.41 in
Standard Button Dimensions (W x H x D)
0.69 x 0.54 x 0.24 in