Schaller GrandTune Guitar Tuning Machine

The Schaller GrandTune combines refined vintage styling with ultra-precise tuning behavior and exceptionally smooth performance. Designed as a perfected open-gear tuning machine, it features an exposed gear and worm drive architecture that ensures optimal acoustic resonance across your instrument.
A precise 1:18 gear ratio delivers fine-tuning accuracy and enduring reliability without relying on synthetic polymer coatings. Its wear-free mechanical interaction, permanently locked screw fittings, and ultra-precise contact surfaces guarantee maintenance-free stability throughout decades of playing.
Engineered to standard instrument dimensions for effortless installation and replacement, this tuning machine features countersunk screw holes that ensure firm anchoring and enhanced tonal transmission between the machine and headstock.
Brand
Schaller
Model
GrandTune GT-Single
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Weight per Single Tuner
0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) including press-in bushing
Button Dimensions
0.8 x 0.5 x 0.4 in (Butterbean), 0.7 x 0.5 x 0.2 in (all other buttons)
Shipping Weight
0.11 lb