Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets a benchmark for enclosed tuners with its refined 1:18 gear ratio, delivering velvety-smooth and precise tuning stability. All parts are precision CNC-machined and surface-treated, featuring a self-locking drive and high-grade brass string posts engineered for wear-free performance.
Featuring the innovative stepped M6 flanged washer, this design reliably centers the string post through the banjo bolt without requiring stepped headstock drilling. This construction eliminates tilting torque and significantly reduces physical stress on both the string post and rear mounting screws.
Permanently lubricated with Schaller special grease for maintenance-free operation, the M6 135 maintains identical installation dimensions to its predecessor for direct replacement on guitars without modification.
Brand
Schaller
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Button Bore Hole
0.17 in. (4.2 mm) diameter with 0.14 in. (3.6 mm) drive flat
Weight per Single Tuner with 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)
Product Weight
0.79 lb
Lubrication
Permanently lubricated with Schaller special grease