Schaller M6 Pin Guitar Tuning Machine

The Schaller M6 Pin guitar tuning machine sets a benchmark for closed tuners, featuring an upgraded 1:18 gear ratio that provides velvety-smooth action and precise tuning stability. Each component is CNC-machined and finished to exact tolerances, driven by a self-locking mechanism and high-grade brass posts engineered for wear-free performance.
Installation is streamlined via Schaller's innovative stepped collar design with a 0.39 in (10 mm) base diameter, which centers the string post securely without requiring stepped headstock drilling. This construction effectively eliminates tilting torque and relieves mechanical stress from both the post and rear mounting screws.
Designed with a 0.39 in (10 mm) center-to-center pin spacing and an 0.31 in (8 mm) distance from pins to the post center, the M6 Pin ensures exact housing compatibility with legacy single-pin Schaller models. All closed tuners are permanently lubricated with Schaller special grease for completely maintenance-free operation.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Gear Ratio
1:18
String Post Material
High-Grade Brass
Pin Spacing (Center to Center)
0.39 in
Distance Between Pins and Post Center
0.31 in
Button Bore Hole
Diameter 0.17 in with 0.14 in driving surface
Weight
0.79 lb
Single Unit Weight with Button
Metal: 1.27 oz / 1.34 oz, Pearloid: 1.06 oz / 1.09 oz, Ebony: 1.06 oz / 1.09 oz
Lubrication
Permanently lubricated with Schaller special grease