Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 guitar tuning machine delivers refined tuning precision and smooth operation with an advanced 1:18 gear ratio. Continuing the legacy of the original sealed tuner introduced in 1966, this updated design combines modern engineering innovations with classic styling.
Precision CNC-machined components and high-grade brass string posts provide exceptional durability, wear-free performance, and dependable tuning stability. Permanently lubricated with specialized grease, the sealed housing ensures long-lasting, maintenance-free performance.
Featuring the innovative stepped flanged washer, this tuning machine centers the string post securely through the headstock without the need for stepped drilling. It shares identical mounting dimensions with its predecessor, making retrofits and replacements straightforward.
Gear Ratio
1:18
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 0.14 in driving flat
Product Weight
0.79 lb
Brand
Schaller
Product Line
M6 Series
Post Material
Brass
Housing Type
Sealed