Schaller GrandTune Single Guitar Tuning Machine

The Schaller GrandTune Single combines vintage aesthetics with precise engineering, featuring an open-gear design and worm drive for smooth tuning performance. Engineered with an ultra-precise 1:18 gear ratio, it ensures exceptional tuning stability, longevity, and accuracy across various guitar setups.
Crafted without synthetic polymer coatings, the contact surfaces provide seamless stick-slip performance while maximizing natural resonance and sound transmission. Its permanently locked, sealed joints deliver wear-free, maintenance-free operation over long-term use.
Designed to match standard production instrument dimensions, this tuning machine enables straightforward installation and replacement. Countersunk screw holes ensure a firm hold and optimal acoustic transfer to the headstock.
Brand
Schaller
Model
GrandTune Single (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Weight per Single Tuner
0.04 lb (Koa), 0.04 lb (Perloid), 0.04 lb (Galalith, Ebony), 0.05 lb (Snakewood), 0.06 lb (Butterbean) including bushing
Button Dimensions (W x H x D)
0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons)
Product Weight
0.11 lb
Bushing Outer Diameter
0.35 in
Bushing Inner Diameter
0.24 in
String Post Fit Diameter
0.24 in