Schaller GrandTune Guitar Tuning Machine

The Schaller GrandTune combines refined vintage aesthetics with precise tuning performance and velvety smooth action. Engineered as an open-gear tuner with an integrated worm gear mechanism, it provides an exact 1:18 gear ratio for fine adjustments and lasting tuning stability.
Crafted without synthetic polymer coatings, the GrandTune delivers optimal acoustic resonance across any instrument. Its ultra-precise contact surfaces provide stick-slip-free performance without wear or aging over extended playing cycles.
Equipped with permanently locked, sealed screw joints and countersunk mounting holes, this tuning machine ensures zero maintenance and superior sound transmission directly to the headstock.
Brand
Schaller
Model
GrandTune Single (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Configuration
Open Gear
Mounting Hardware
2 countersunk mounting screws (M2.2 x 11), 1 hexagonal press-in bushing
Weight per Tuner
0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean)
Button Dimensions
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