Schaller GrandTune Single Guitar Tuning Machine

The Schaller GrandTune Single Guitar Tuning Machine combines classic open-gear vintage aesthetics with high-precision engineering. Built with an open gear and worm architecture, it delivers smooth tuning response and rock-solid pitch stability without synthetic polymer coatings, allowing maximum instrument resonance.
Featuring an ultra-precise 1:18 gear ratio, this tuning machine provides velvety-smooth action, pinpoint accuracy, and exceptional durability over years of playing. Permanently locked, sealed screw joints ensure completely maintenance-free and wear-free performance for both solid and slotted headstocks.
Crafted to standard production guitar dimensions for effortless retrofitting and installation, it incorporates countersunk mounting screw holes to optimize coupling, stability, and acoustic tone transfer directly into the headstock wood.
Brand
Schaller
Model Number
GT-Single
Gear Ratio
1:18
Product Type
Single Guitar Tuning Machine
Design
Open Gear
Button Dimensions (Butterbean)
0.8 x 0.5 x 0.4 in
Button Dimensions (Standard)
0.7 x 0.5 x 0.2 in
Weight per Single Tuner (Koa)
0.6 oz
Weight per Single Tuner (Perloid)
0.7 oz
Weight per Single Tuner (Galalith, Ebony)
0.7 oz
Weight per Single Tuner (Snakewood)
0.7 oz
Weight per Single Tuner (Butterbean)
0.9 oz
Product Weight
0.1 lb