Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed-type tuners, offering an advanced 1:18 gear ratio for velvet-smooth tuning and exceptional accuracy. All components are CNC-machined to precise tolerances and surface-finished, utilizing a self-locking drive mechanism to ensure consistent, stable tuning retention.
Equipped with high-grade brass string posts engineered directly into the housing, this tuning machine delivers superior wear resistance and long-lasting pitch stability. An innovative stepped M6 flanged washer centers the string post securely over the banjo bolt, eliminating tilt torque and removing mechanical pressure from both the post and mounting screws.
Featuring permanent lubrication with specialized Schaller grease, these sealed tuning machines are completely maintenance-free. Designed with identical installation dimensions to their legacy counterparts, they allow for seamless replacement and retrofitting on standard guitar headstocks without modification.
Brand
Schaller
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Housing Type
Closed / Sealed
Lubrication
Permanently lubricated with Schaller grease
Button Bore Hole
Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm)
Flanged Washer Diameter
0.39 in (10 mm)
Mounting Screws Included
M2.2 x 9.5
Product Weight
0.13 lb