Schaller M6 Pin Guitar Tuning Machine

The Schaller M6 Pin guitar tuning machine sets an industry standard for precision and tuning stability with an improved 1:18 gear ratio. Designed with CNC-machined components and surface finishes, it features a self-locking drive mechanism that guarantees smooth, sensitive, and reliable tuning performance across all playing conditions.
Engineered for enduring durability, each string post is crafted from high-grade brass and fitted into the closed housing to eliminate wear and backlash. All closed tuning machines come permanently lubricated with Schaller special grease, rendering them completely maintenance-free over their entire lifespan.
Installation is optimized by the innovative stepped M6 flanged washer, which centers the string post securely through the banjo bolt and eliminates tilt torque without requiring a stepped headstock bore. The dual-pin design ensures robust anchoring directly into the headstock for maximum mechanical alignment.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Gear Ratio
1:18
Post Material
High-Grade Brass
Pin Spacing (Center to Center)
0.39 in
Pin to Post Center Distance
0.31 in
Button Bore Hole Diameter
0.17 in with 0.14 in drive flat
Flanged Washer Diameter
0.39 in
Mounting Screw Size
M2.2 x 0.37 in
Lubrication
Schaller Special Grease, Maintenance-Free
Weight per Single Unit (Small / Large Button)
Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz)
Product Weight
0.79 lb