Schaller GrandTune Single Guitar Tuning Machine

The Schaller GrandTune Single combines vintage aesthetics with precise tuning response and smooth operation. Designed as an open-gear tuning machine, it features precision-cut open gears and worm screws to provide optimal resonance across acoustic and electric instruments.
With an 1:18 gear ratio, this tuning machine delivers fine tuning stability and accurate pitch adjustment. Its construction avoids synthetic coatings, relying on high-precision contact surfaces to resist wear and prevent stick-slip movement.
Equipped with permanently locked and sealed screw joints, the mechanism ensures maintenance-free longevity. It includes standard mounting dimensions with countersunk screw holes to ensure firm fitment and efficient sound transfer on compatible solid or slotted headstocks.
Brand
Schaller
Model
GrandTune Single (GT-Single)
Product Type
Single Guitar Tuning Machine
Gear Ratio
1:18
Design
Open Gear
Mounting Type
Countersunk Screws
Weight
0.11 lb
Bushing Outer Diameter
0.35 in
Bushing Inner Diameter
0.24 in
Post Compatibility
0.24 in Post