Schaller GrandTune Guitar Tuning Machine

The Schaller GrandTune combines classic vintage open-gear aesthetics with modern precision engineering and smooth performance. Featuring an open-gear architecture with a worm gear drive, this tuning machine delivers precise tuning stability and resonant acoustic coupling without synthetic coatings.
With an exact 1:18 gear ratio, it ensures precise, velvety action and lasting reliability. Ultra-precise contact surfaces eliminate wear and aging, while permanently locked and sealed screw joints provide completely maintenance-free operation across the life of your instrument.
Designed to standard instrument dimensions for straightforward installation and retrofitting, it features countersunk screw holes for solid anchoring and optimal sound transmission. Included mounting hardware ensures precise alignment and seamless integration on solid or slotted headstocks.
Brand
Schaller
Model
GrandTune (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Design
Open Gear
Weight per Unit
0.04 lb (Koa), 0.04 lb (Perloid), 0.04 lb (Galalith, Ebony), 0.05 lb (Snakewood), 0.06 lb (Butterbean) including bushing
Button Dimensions (Butterbean)
0.80 x 0.54 x 0.41 in
Button Dimensions (Standard)
0.69 x 0.54 x 0.24 in
Total Weight
0.11 lb