Schaller M6 Pin Guitar Tuning Machine

The Schaller M6 Pin guitar tuning machine sets a benchmark for closed tuners with an advanced 1:18 gear ratio that ensures ultra-precise and smooth tuning action. Each component is CNC-machined to exact tolerances, paired with high-grade brass string posts engineered for maximum tuning stability and wear resistance.
Featuring the innovative stepped M6 flange washer, this tuning machine simplifies installation by reliably centering the string post without requiring a stepped peghead bore. This design eliminates tilting torque and significantly reduces mechanical stress on both the string post and rear mounting screws.
Equipped with permanent internal lubrication via specialized grease, the sealed housing delivers maintenance-free, self-locking operation. The dual-pin configuration provides a secure mount with a 0.39 in center-to-center pin spacing and 0.31 in post offset for dependable instrument upgrades.
Brand
Schaller
Series
M6 Series
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
String Post Material
High-Grade Brass
Housing Design
Sealed Dual-Pin Mount
Lubrication
Permanent Special Grease
Pin Spacing (Center to Center)
0.39 in
Pin to Post Center Distance
0.31 in
Stepped Washer Diameter
0.39 in
Button Bore Diameter
0.17 in (with 0.14 in drive flat)
Weight per Unit (Small / Large Metal Button)
0.08 lb / 0.08 lb (including hollow screw)
Weight per Unit (Perloid / Ebony Button)
0.07 lb / 0.07 lb (including hollow screw)
Product Weight
0.13 lb