Schaller GrandTune Single Guitar Tuning Machine

The Schaller GrandTune Single is an open-gear guitar tuning machine designed to unite refined vintage styling with ultra-precise modern functionality. Engineered without synthetic coatings, it ensures pure acoustic resonance and seamless mechanical coupling across any instrument.
Featuring a precise 1:18 gear ratio, this tuning machine provides smooth, velvet-like tuning performance and exceptional stability. Sealed and permanently locked screw joints ensure wear-free, zero-maintenance operation over its entire lifespan.
Built to accommodate standard instrument headstock dimensions, it comes complete with mounting screws and specialized press-in bushings for solid headstock installations, ensuring straightforward installation and perfect tone transfer.
Brand
Schaller
Model
GrandTune Single (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Design
Open Gear
Product Weight
0.11 lb
Weight per Tuner
0.63 oz (Koa), 0.67 oz (Pearloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean)
Butterbean Button Dimensions
0.80 x 0.54 x 0.41 in
Standard Button Dimensions
0.69 x 0.54 x 0.24 in
Bushing Outer Diameter
0.35 in
Mounting Screws Included
2 x M2.2 x 11 mm per unit