Schaller GrandTune Guitar Tuning Machine

The Schaller GrandTune combines refined vintage design with precise tuning behavior and velvet-smooth performance. Built as an open-gear tuner with an ultra-precise worm gear architecture, it offers a 1:18 gear ratio for superior accuracy and durability.
Crafted without synthetic polymer coatings, the high-precision contact surfaces provide natural stick-slip properties free from wear or aging. Permanently locked, sealed screw joints ensure maintenance-free reliability across all instrument types.
Designed to fit standard production headstock dimensions, each tuning machine includes countersunk screw holes for solid mounting and optimal acoustic resonance transfer.
Brand
Schaller
Model
GrandTune (GT-Single)
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Design
Open Gear
Weight per Single Tuner
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