Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine delivers exceptional tuning accuracy and smooth operation with an improved 1:18 gear ratio. Designed as the modern evolution of the legendary original closed tuner, it offers refined mechanics and robust performance for demanding musicians.
Every component is precision CNC-machined and surface-finished, featuring high-grade brass string posts that fit snugly into the housing to maximize tuning stability and eliminate wear. Permanently lubricated with Schaller special grease, the closed housing provides completely maintenance-free reliability.
Featuring the innovative stepped M6 flanged washer, this tuner centers the string post securely through the hollow screw, preventing tilting torque and relieving mechanical stress without requiring stepped headstock boreholes. It shares the identical installation dimensions of previous models for seamless, drop-in replacement.
Brand
Schaller
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Weight
0.13 lb
String Post Material
Brass
Lubrication
Schaller Special Grease (Maintenance-Free)
Button Borehole
Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat