Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets an industry standard for precision, durability, and tuning stability. Engineered with an enhanced 1:18 gear ratio, it delivers an exceptionally smooth, accurate, and stable tuning performance for electric and acoustic guitars.
Precision CNC-machined components and solid brass posts ensure minimal mechanical wear and complete self-locking drive efficiency. Each unit is permanently lubricated with Schaller special grease, providing a completely maintenance-free operating lifespan under all playing conditions.
Featuring the innovative stepped M6 flanged washer with a 0.39-inch diameter base, this machine facilitates centered post alignment without requiring stepped headstock boreholes. The standardized mounting dimensions allow effortless direct replacement of legacy units without headstock modification.
Brand
Schaller
Series
M6 Series
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Product Weight
0.13 lb
Weight per Tuner (Small / Large Button)
Metal: 1.27 oz / 1.34 oz, Perloid: 1.06 oz / 1.09 oz, Ebony: 1.06 oz / 1.09 oz (including banjonut)
Button Bore Hole
0.17 in diameter with 0.14 in driving surface
Stepped Washer Diameter
0.39 in
Mounting Screws
M2.2 x 0.37 in
Lubrication
Permanently lubricated with Schaller special grease