Schaller GrandTune Guitar Tuning Machine

The Schaller GrandTune combines classic vintage open-gear design with ultra-precise tuning behavior and smooth performance. Engineered with an open gear and worm screw configuration, it provides premium tuning stability and resonant acoustic coupling on any compatible guitar headstock.
Featuring an 18:1 gear ratio, this tuning machine delivers high-precision accuracy and exceptional longevity. Built without synthetic coatings, its ultra-precise metal contact surfaces eliminate wear and aging while maximizing string vibration transfer through the instrument.
Equipped with permanently locked, sealed joints and countersunk screw holes, the unit ensures maintenance-free operation and secure mounting for production and custom instruments alike.
Brand
Schaller
Model
GT-Single
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Design
Open Gear
Weight per Machine
0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean)
Button Dimensions (Butterbean)
0.8 x 0.5 x 0.4 in
Button Dimensions (Standard)
0.7 x 0.5 x 0.2 in
Product Weight
0.1 lb