Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 Guitar Tuning Machine represents the modern evolution of the legendary original sealed tuning machine established in 1966. Featuring a precise 1:18 gear ratio, it delivers ultra-smooth, delicate, and stable tuning performance for exceptional pitch accuracy.
Precision CNC-machined from premium materials, each unit incorporates high-grade brass posts fitted into the housing to ensure maximum tuning stability and long-lasting wear resistance. Internal components are permanently lubricated with Schaller special grease for completely maintenance-free operation.
Equipped with an innovative stepped M6 flanged washer, this tuner allows effortless installation and solid post centering without the need for a stepped peghead bore. It maintains identical mounting dimensions to its predecessor for direct replacement without instrument modifications.
Brand
Schaller
Model
M6 90
Product Line
M6 Series
SKU
10050471.01.52
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Weight
0.13 lb
Weight with Button per 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
Button Bore Hole
Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat
Post Material
High-Grade Brass
Housing Design
Sealed, Permanently Lubricated