Schaller M6 180 Guitar Tuning Machine

The Schaller M6 180 guitar tuning machine represents precision engineering with an improved 1:18 gear ratio for smooth, accurate, and stable tuning. Designed as the modern evolution of the legendary original sealed tuning machine introduced in 1966, it incorporates state-of-the-art CNC manufacturing and premium surface finishing.
Crafted with premium brass string posts fitted directly into the housing, this machine head provides maximum tuning stability and wear-free performance. The internal sealed mechanism is permanently lubricated with specialized Schaller grease, making it completely maintenance-free over its entire service life.
Featuring the innovative stepped M6 flanged washer with a 0.39 in diameter base, installation is simplified without requiring stepped headstock drilling. This smart design centers the string post securely through the hollow screw, eliminating tilting torque and protecting the mounting screws and posts from unnecessary stress.
Brand
Schaller
Model
M6 180
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Flanged Washer Diameter
0.39 in
Button Bore Diameter
0.17 in with 0.14 in drive flat
Product Weight
0.13 lb
Weight per Single Tuner with Button (Small/Large)
Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb)
Mounting Screw Size
M2.2 x 9.5
Lubrication
Permanently lubricated with Schaller special grease