Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 Guitar Tuning Machine delivers exceptional tuning accuracy and smooth operation with an improved 1:18 gear ratio. CNC-machined components with premium surface finishes and self-locking drive mechanics provide precise, velvet-smooth tuning and long-term stability.
Constructed with high-grade brass string posts fitted precisely into the housing, this tuning machine ensures maximum wear resistance and pitch retention. The stepped M6 flanged washer reliably centers the string post via the banjo bolt, eliminating tilt torque and the need for a stepped peghead bore.
Permanently lubricated with Schaller special grease for maintenance-free performance, the M6 90 matches the exact installation dimensions of its predecessor for seamless drop-in replacement on electric and acoustic guitars.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Gear Ratio
1:18
String Post Material
Brass
Flanged Washer Diameter
0.39 in
Button Bore Hole
0.17 in diameter with 0.14 in driving surface
Weight
0.79 lb
Lubrication
Schaller Special Grease (Maintenance-Free)