Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets an industry benchmark for precision, tuning stability, and refined performance. Featuring an improved 1:18 gear ratio, it delivers ultra-smooth operation and precise micro-tuning capabilities. High-grade brass string posts and CNC-machined components ensure maximum wear resistance and consistent, self-locking drive engagement.
Equipped with Schaller's innovative stepped flanged washer, the M6 135 eliminates tilt moment by centering the string post directly via the hollow screw, removing the need for stepped headstock boreholes. All enclosed gear units are permanently lubricated with Schaller special grease, making them completely maintenance-free over extended use.
Designed with the exact mounting dimensions of its iconic predecessor, this tuning machine enables seamless, direct replacement without requiring instrument modifications. The package includes mounting screws, stepped washers, and hollow screws for a straightforward and secure installation.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Model
M6 135
Gear Ratio
1:18
Post Material
Brass
Single Tuner Weight (Small / Large Button)
Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz)
Button Bore Hole
0.17 in diameter with 0.14 in drive flat
Mounting Screw Size
M2.2 x 9.5 mm (0.37 in)
Lubrication
Schaller Special Grease (Maintenance-Free)
Weight
0.79 lb