Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets an industry standard for precision tuning and reliability. Featuring an advanced 1:18 gear ratio, it delivers velvety-smooth, accurate tuning alongside high-grade CNC-machined components engineered for self-locking drive stability.
Crafted with premium brass posts fitted precisely into the housing, this closed tuner guarantees maximum tuning stability, wear-free performance, and maintenance-free operation thanks to Schaller special grease lubrication.
Equipped with an innovative stepped M6 flanged washer, it centers the string post securely without requiring a stepped headstock bore, eliminating tilting torque and reducing mechanical stress.
Brand
Schaller
Model
M6 135
Series
M6 Series
Gear Ratio
1:18
Post Material
High-Grade Brass
Manufacturing
Precision CNC-Machined
Lubrication
Schaller Special Grease (Permanently Lubricated)
Product Weight
0.13 lb
Single Tuner Weight with Button (Small/Large)
Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt
Button Bore Hole
0.17 in diameter with 0.14 in driving surface