Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine delivers outstanding precision and tuning stability, featuring a refined 1:18 gear ratio for smooth and delicate adjustment. Built with high-precision CNC-machined components and durable brass string posts fitted directly into the housing, it ensures consistent, wear-free performance across extensive playing sessions.
Equipped with an innovative stepped M6 flanged washer with a 0.39 in diameter base, the tuner centers the string post securely through the banjo bolt without requiring stepped headstock drilling. This design eliminates tilting torque and relieves mechanical stress from both the post and rear mounting screws for enhanced longevity.
Featuring permanent self-locking drive lubrication with Schaller special grease, these sealed tuners are completely maintenance-free. With mounting dimensions identical to its predecessor, the M6 135 serves as a direct, drop-in replacement upgrade for classic and contemporary headstocks alike.
Brand
Schaller
Product Line
M6 Series
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Lubrication
Schaller Special Grease (Permanently Lubricated)
Button Bore Hole
Diameter 0.17 in with 0.14 in drive flat
Mounting Screws
M2.2 x 0.37 in
Product Weight
0.79 lb
Single Tuner Weight (Metal Button Small / Large)
1.27 oz / 1.34 oz
Single Tuner Weight (Perloid Button Small / Large)
1.06 oz / 1.09 oz
Single Tuner Weight (Ebony Button Small / Large)
1.06 oz / 1.09 oz