Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine offers precision engineering and smooth tuning stability with a refined 1:18 gear ratio. Designed to match the exact mounting dimensions of its predecessor, it allows direct, modification-free replacement on compatible headstocks.
Every component is CNC-machined for high precision and surface-finished to ensure lasting durability. High-grade brass string posts fit tightly within the housing, while permanent internal lubrication with Schaller special grease delivers maintenance-free, self-locking operation.
Featuring the innovative stepped M6 flanged bushing, this tuning machine reliably centers the string post via the hollow bolt without requiring a stepped peghead bore. This design eliminates tilting torque and distributes pressure away from both the post and the rear mounting screw.
Brand
Schaller
Series
M6 Series
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Button Borehole
Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat
Weight per Single Unit (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)
Lubrication
Permanently lubricated with Schaller special grease
Mounting Hardware Included
Hollow bolts, flanged washers, and M2.2 x 9.5 mounting screws
Product Weight
0.13 lb