Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets a benchmark for closed-type tuning mechanisms, combining classic heritage with refined engineering. Featuring an advanced 1:18 gear ratio, it delivers ultra-precise, smooth tuning action and exceptional pitch stability across all playing styles.
Every component is CNC-machined to exact tolerances, featuring precision brass posts fitted perfectly into the housing to eliminate wear and backlash. The internal mechanisms are permanently lubricated with Schaller special grease, ensuring reliable, completely maintenance-free operation over the lifetime of the instrument.
Equipped with the innovative stepped M6 flanged collar with a 0.39-inch diameter base, this tuning machine reliably self-centers the string post through the banjonut. This smart engineering eliminates tilting torque, relieving pressure from the post and mounting screw without requiring stepped drilling into the headstock.
Brand
Schaller
Series
M6 Series
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Button Bore Hole
0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat
Flanged Collar Diameter
0.39 in (10 mm)
Product Weight
0.13 lb
Lubrication
Schaller Special Grease (Maintenance-Free)