Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine delivers exceptional tuning accuracy and velvety-smooth operation, equipped with a precise 1:18 gear ratio. Continuing the legacy of the original 1966 design, this enclosed tuner integrates modern engineering refinements to optimize string tension control and instrument performance.
Precision CNC-machined components and solid brass posts ensure long-term wear resistance and outstanding pitch stability. Sealed housing permanently lubricated with Schaller special grease guarantees maintenance-free longevity and consistent gear engagement.
An innovative stepped M6 flanged washer centers the string post securely through the hollow screw, removing tilt torque and eliminating the need for a stepped peghead bore while maintaining the standard mounting dimensions of its predecessor.
Brand
Schaller
Product Type
Guitar Tuning Machine
Model
M6 135
Series
M6 Series
Gear Ratio
1:18
String Post Material
High-Grade Brass
Manufacturing Process
CNC-machined
Lubrication
Permanently lubricated with Schaller special grease
Mounting Compatibility
Direct replacement for previous M6 135 models
Weight with Button (Per Unit)
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 Hole Bore
Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm)
Weight
0.79 lb