Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets a benchmark for closed tuners, featuring an upgraded 1:18 gear ratio for velvety smooth and highly precise tuning comfort. High-precision CNC machining and premium brass string posts deliver exceptional durability, wear-free performance, and unmatched tuning stability.
Equipped with the innovative stepped M6 flanged washer, this tuning machine simplifies installation by reliably centering the string post without requiring a stepped headstock bore. This functional design eliminates tilting moments and relieves mechanical pressure from both the post and the rear mounting screw.
Engineered to match the exact mounting dimensions of its iconic predecessor, the M6 135 serves as a seamless drop-in replacement without any guitar modifications. All internal components come permanently lubricated with specialized Schaller grease for lifelong, maintenance-free operation.
Brand
Schaller
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Button Bore Hole
Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat
Product Weight
0.13 lb
Lubrication
Maintenance-free Schaller Special Grease