Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine delivers outstanding precision and smooth tuning comfort with an upgraded 1:18 gear ratio. All components are high-precision CNC-machined and surface-treated to guarantee smooth, sensitive, and stable tuning via a self-locking drive.
Featuring high-grade brass string posts engineered for maximum wear resistance and tuning stability, the M6 135 incorporates a stepped flanged washer with a 10 mm diameter. This design eliminates tilting torque and centers the post perfectly without requiring stepped headstock reaming.
Each closed machine head is permanently lubricated with Schaller special grease for completely maintenance-free operation. Built to identical installation dimensions as its classic predecessor, the M6 135 offers direct drop-in replacement capability.
Gear Ratio
1:18
Weight per Single Tuner with Button (Small/Large)
Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt
Button Bore Hole
Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm)
Product Weight
0.13 lb
Brand
Schaller
Series
M6 Series
Product Type
Guitar Tuning Machine
String Post Material
Brass
Lubrication
Permanent Schaller Special Grease