Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 guitar tuning machine delivers outstanding precision and tuning comfort with its refined 1:18 gear ratio. All components are CNC-machined to exact tolerances, premium finished, and feature a self-locking drive that provides smooth, sensitive, and stable tuning.
Crafted with high-grade brass string posts precisely fitted into the housing, this closed tuner ensures optimal tuning stability and wear-free operation. Every unit is permanently lubricated with Schaller special 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, the tuner centers the string post securely through the threaded bushing without requiring stepped headstock holes. This design eliminates tilting torque and reduces strain on both the string post and rear mounting screw.
Brand
Schaller
Product Type
Guitar Tuning Machine
Model Series
M6 Series
Gear Ratio
1:18
Post Material
Brass
Product Weight
0.79 lb
Single Tuner Weight 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) including threaded bushing
Button Bore Hole
Diameter 0.17 in with 0.14 in driving surface
Lubrication
Permanently lubricated with Schaller special grease