Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine delivers outstanding precision and smooth handling with an upgraded 1:18 gear ratio. As the modern evolution of the iconic 1966 original, it integrates contemporary engineering refinements while preserving legendary stability.
Every component is CNC-machined to exact tolerances and surface-finished for consistent operation. High-grade brass posts fit precisely into the enclosed housing, while permanent lubrication ensures completely maintenance-free performance and exceptional durability.
Featuring the innovative stepped M6 flanged washer, this tuner centers the string post securely over the hollow screw without requiring a stepped peghead bore. It shares identical mounting dimensions with its predecessor, allowing seamless drop-in replacement on standard headstocks.
Brand
Schaller
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
High-Grade Brass
Housing Type
Enclosed (Permanently Lubricated)
Button Bore Hole
0.17 in diameter with 0.14 in driving surface
Weight per Single Unit (Small/Large)
Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw
Weight
0.79 lb