Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine features a refined 1:18 gear ratio, delivering unmatched tuning accuracy and smooth operation. High-precision CNC machining and self-locking drive mechanisms provide delicate, uniform adjustment and outstanding tuning stability.
Equipped with high-grade brass posts precisely fitted into the housing, this tuning machine prevents wear over long-term use. The innovative stepped M6 flanged washer centers the string post securely through the banjo bolt, eliminating tilt torque without requiring stepped drilling in the headstock.
Permanently lubricated with Schaller special grease, these sealed tuners remain entirely maintenance-free. Designed with identical installation dimensions to its predecessor, it allows seamless replacement on existing instruments.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Gear Ratio
1:18
Post Material
Brass
Button Bore Hole
Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm)
Weight per Tuner (Small/Large Button)
Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid: 1.06 oz / 1.09 oz (30 g / 31 g); Ebony: 1.06 oz / 1.09 oz (30 g / 31 g)
Included Hardware
6 threaded bushings, 6 flanged washers, 6 mounting screws (M2.2 x 9.5)
Lubrication
Schaller special grease (maintenance-free)