Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine offers precision engineering and smooth tuning stability with an improved 1:18 gear ratio. Designed with CNC-machined parts and high-grade brass string posts, these closed tuners ensure sensitive, backlash-free operation and long-lasting performance.
Featuring the innovative stepped M6 flanged washer, the unit centers the string post reliably through the banjo bolt without requiring a stepped peghead bore. This construction eliminates tilting torque and absorbs physical tension from both the post and the rear mounting screw.
All enclosed tuning machines are permanently lubricated with Schaller special grease for completely maintenance-free functionality. The M6 135 shares identical installation dimensions with previous generation models, making it a direct retrofit replacement for straightforward guitar upgrades.
Brand
Schaller
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Weight
0.79 lb
Button Bore Diameter
0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat
Mounting Screw Size
M2.2 x 9.5
Lubrication
Schaller Special Grease (Permanently Lubricated)