Schaller GrandTune Guitar Tuning Machine

The Schaller GrandTune combines refined vintage aesthetics with precise tuning behavior and velvet-smooth performance. Crafted as a perfected open-gear tuning machine, it features an exposed gear and worm screw design that integrates seamlessly with fine instruments without synthetic polymer coatings.
A precise 1:18 gear ratio delivers exceptional tuning accuracy, tactile feel, and long-term durability. High-precision contact surfaces ensure smooth movement and wear-free interaction, allowing the unit to maintain optimal resonance, tonal clarity, and reliable tuning stability.
Engineered to standard instrument dimensions for straightforward installation and replacement, this tuning machine features permanently locked, sealed screw joints and countersunk mounting holes that provide secure acoustic coupling to the headstock.
Brand
Schaller
Model
GrandTune Single (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Design
Open Gear
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)
Button Dimensions (W x H x D)
0.8 x 0.5 x 0.4 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons)
Product Weight
0.11 lb