Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 guitar tuning machine continues a legendary standard of enclosed tuners with modern technical refinement. Featuring an advanced 1:18 gear ratio, it ensures precise, velvety-smooth tuning alongside exceptional tuning stability.
Every component is CNC-machined to exact tolerances, high-grade brass posts fit cleanly into the housing, and a self-locking drive delivers uniform and sensitive operation. The enclosed housing is permanently lubricated with Schaller special grease for completely maintenance-free performance.
Installation is straightforward thanks to identical mounting dimensions to predecessor models and the innovative stepped M6 flanged washer. This washer centers the string post securely through the banjo bolt, eliminating the need for stepped headstock drilling and effectively relieving mechanical pressure on both the post and mounting screw.
Gear Ratio
1:18
Weight with Button per Single Tuner (Small/Large)
Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjo bolt
Button Bore Hole
Diameter 0.17 in with driving surface 0.14 in
Brand
Schaller
Model
M6 90
Product Type
Guitar Tuning Machine
Post Material
Brass
Lubrication
Schaller Special Grease (Maintenance-Free)
Product Weight
0.13 lb