Schaller M6 180 Guitar Tuning Machine

The Schaller M6 180 guitar tuning machine delivers outstanding precision and tuning comfort with an improved 1:18 gear ratio. Continuing the legacy of the original 1966 closed tuner design, this modern iteration features high-precision CNC-machined components and high-grade brass posts engineered for wear-free operation and exceptional stability.
Featuring the innovative stepped M6 flanged washer, this tuning machine reliably centers the string post via the banjo bolt, eliminating tilt torque and surface stress without requiring stepped headstock boreholes. The self-locking drive ensures smooth, sensitive, and dependable adjustments across all playing conditions.
Each closed machine head is permanently lubricated with specialized Schaller grease for completely maintenance-free performance. Sized for direct replacement without instrument modifications, the M6 180 is compatible with both standard and upgraded guitar headstock configurations.
Brand
Schaller
Product Type
Guitar Tuning Machine
Model
M6 180
Gear Ratio
1:18
Post Material
Brass
Product Weight
0.13 lb
Estimated Shipping Weight
0.13 lb
Button Borehole
0.17 in diameter with 0.14 in drive flat
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 banjo bolt
Lubrication
Schaller Special Grease (Permanently Lubricated)