Schaller M6 180 Guitar Tuning Machine

The Schaller M6 180 guitar tuning machine represents precision engineering and refined performance, setting a worldwide standard for closed tuners. Designed with a 1:18 gear ratio, it delivers unmatched tuning accuracy and smooth, velvet-like operational comfort.
Every component is CNC-machined and surface-finished to high tolerances, featuring high-grade brass posts fitted seamlessly into the housing for maximum stability and wear resistance. Permanently lubricated with Schaller special grease, each closed unit remains completely maintenance-free over its extended lifespan.
An innovative stepped M6 flanged washer centers the string post reliably through the banjo bolt, eliminating tilting moment and relieving stress on mounting screws without requiring stepped peghead counterbores. The M6 180 replaces predecessor models cleanly without headstock modifications.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Model
M6 180
Gear Ratio
1:18
Post Material
High-Grade Brass
Weight per Unit with Button (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 0.14 in driving surface
Product Weight
0.79 lb
Lubrication
Schaller Special Grease (Maintenance-Free)