Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 guitar tuning machine represents the modern evolution of the legendary original enclosed tuner, delivering smooth performance and unmatched tuning precision with an upgraded 1:18 gear ratio. Every component is CNC-machined to exacting tolerances and permanently lubricated with specialized grease for completely maintenance-free operation.
Equipped with high-grade brass string posts engineered for wear resistance, this tuner ensures exceptional tuning stability under demanding playing conditions. The innovative stepped M6 flanged washer centers the string post securely through the threaded bushing without requiring stepped peghead boreholes, effectively eliminating tilting torque and reducing strain on mounting hardware.
Featuring identical mounting dimensions to its historic predecessor, the M6 90 installs seamlessly on guitars without requiring instrument modifications. It combines historic aesthetic appeal with contemporary engineering to elevate tuning accuracy and instrument reliability.
Gear Ratio
1:18
Weight per Single Tuner with Button (Small/Large)
Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw
Button Bore Hole
Diameter 0.17 in with drive flat 0.14 in
Weight
0.79 lb
Brand
Schaller
Model
M6 90
Product Line
M6 Series
Material
Brass / Metal
Product Type
Guitar Tuning Machine