Schaller M6 180 Guitar Tuning Machine

The Schaller M6 180 guitar tuning machine features a precise 1:18 gear ratio that delivers smooth, highly accurate tuning response. Building upon the iconic 1966 design, all components are CNC-machined to exacting tolerances and permanently lubricated with specialized grease for maintenance-free reliability.
High-grade brass string posts fit tightly into the housing to maximize tuning stability and resist wear over years of continuous playing. The self-locking gear design maintains string tension without slipping, ensuring fine-tuned pitch consistency during demanding performance.
Engineered for simple installation, the stepped M6 flanged washer reliably centers the string post without requiring stepped headstock boreholes. This integrated structural design eliminates tilting torque and distributes pressure evenly away from both the post and mounting screws.
Brand
Schaller
Model
M6 180
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Button Borehole
0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat
Lubrication
Permanently lubricated with Schaller special grease
Product Weight
0.13 lb