Schaller M6 180 Guitar Tuning Machine

The Schaller M6 180 guitar tuning machine features a refined 1:18 gear ratio, delivering precise, velvety-smooth tuning and exceptional intonation stability. Precision CNC-machined components and high-grade brass posts ensure smooth, wear-free mechanical performance across demanding playing conditions.
Equipped with Schaller's stepped flanged washer, this tuning machine simplifies installation by reliably centering the string post within 10 mm (0.39 in) headstock bores. This design eliminates tilting moments and relieves mechanical stress from both the post and the rear mounting screw without requiring stepped drilling.
Each closed housing is permanently lubricated with proprietary Schaller grease, providing maintenance-free operation and consistent tuning precision over years of service. A self-locking drive and rigid brass string post construction maximize resonance transfer and tuning retention.
Brand
Schaller
Product Type
Guitar Tuning Machine
Model
M6 180
Series
M6 Series
Gear Ratio
1:18
Post Material
High-Grade Brass
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) including banjo bolt
Button Bore Hole
Diameter 0.17 in with driving surface 0.14 in
Washer Outer Diameter
0.39 in
Mounting Screw Dimensions
M2.2 x 9.5 mm (0.37 in)
Estimated Shipping Weight
0.13 lb
Lubrication
Permanently lubricated with Schaller special grease