Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets an industry standard for enclosed tuners, delivering unmatched tuning accuracy and smooth operation. Engineered with a refined 1:18 gear ratio and high-precision CNC-machined components, it provides sensitive, consistent, and exceptionally stable string adjustments.
Crafted with premium brass string posts precisely fitted into the housing, this tuning machine ensures maximum wear resistance and long-lasting tuning stability. The closed housing design is permanently lubricated with Schaller special grease for completely maintenance-free performance.
Featuring the innovative stepped M6 flanged washer, the unit centers the string post securely through the hollow screw without requiring stepped peghead drilling. This construction eliminates tilting torque and reduces mechanical stress on both the post and rear mounting screw for direct, drop-in replacement.
Brand
Schaller
Product Type
Guitar Tuning Machine
Model
M6 135
Gear Ratio
1:18
Post Material
Brass
Weight per Single Tuner with Button (Small/Large)
Metal (1.3 oz / 1.3 oz), Perloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including hollow screw
Button Bore Hole
Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat
Lubrication
Permanently lubricated with Schaller special grease
Weight
0.13 lb