Schaller GrandTune Guitar Tuning Machine

The Schaller GrandTune combines refined vintage aesthetics with modern engineering precision. Featuring an open-gear architecture and precise worm gear mechanism, this tuning machine delivers smooth performance and reliable tuning stability without synthetic coatings.
Equipped with an 1:18 gear ratio, the GrandTune offers exact intonation adjustments for a wide range of acoustic, electric, and classical instruments. Its ultra-precise contact surfaces ensure smooth stick-slip action and wear-free operation across years of play.
Built with permanently locked and sealed screw connections, the unit ensures maintenance-free longevity. Counterbored mounting screw holes provide firm contact and optimal acoustic resonance transfer directly to the headstock.
Brand
Schaller
Model
GT-Single
Gear Ratio
1:18
Design
Open Gear
Weight
0.1 lb
Included Mounting Screws
2x M2.2 x 0.43 in
Included Bushing
Hexagonal press-in bushing (0.35 in outer diameter, 0.24 in inner diameter)
Button Dimensions (Butterbean)
0.80 x 0.54 x 0.41 in
Button Dimensions (Standard)
0.69 x 0.54 x 0.24 in