Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 Guitar Tuning Machine delivers exceptional tuning accuracy and refined performance with an upgraded 1:18 gear ratio. Designed as the modern evolution of the legendary original sealed tuning machine introduced in 1966, it features high-precision CNC-machined components and a self-locking drive mechanism for smooth, reliable, and wear-free operation.
Equipped with high-grade brass string posts engineered for an exact fit inside the housing, this tuner ensures maximum tuning stability and longevity. All sealed internal mechanisms are permanently lubricated with proprietary Schaller grease, making them completely maintenance-free throughout their operational life.
The innovative stepped M6 flanged washer reliably centers the string post via the banjo bolt, eliminating the need for a stepped headstock bore and removing tilt torque from the post and mounting screw. Built to match the exact installation dimensions of preceding models, it serves as a seamless drop-in replacement without requiring guitar modifications.
Brand
Schaller
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Lubrication
Permanently lubricated with Schaller special grease
Button Bore Hole
Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) 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 hollow screw
Product Weight
0.79 lb