Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 guitar tuning machine delivers outstanding precision and smooth tuning comfort with an improved 1:18 gear ratio. CNC-machined components with premium surface finishes ensure precise, self-locking operation and lasting tuning stability.
Crafted with premium brass string posts and permanently lubricated with Schaller special grease, these sealed tuners are completely maintenance-free. The innovative stepped M6 flanged washer ensures effortless installation and solid centering without requiring a stepped headstock bore.
Featuring the exact installation dimensions of its predecessor, the M6 90 allows for direct replacement without instrument modifications, combining classic heritage with modern German engineering.
Brand
Schaller
Model
M6 90
Series
M6 Series
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Weight
0.8 lb
String Post Material
Brass
Lubrication
Permanently lubricated with Schaller special grease
Mounting Type
90-degree screw tab
Button Borehole
Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm)