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 for exceptionally precise and smooth tuning performance. Precision CNC-machined components and surface finishing combine with a self-locking drive to provide consistent, ultra-fine adjustment and long-lasting tuning stability.
Constructed with durable brass string posts fitted directly into the housing, this tuning machine delivers wear-free operation and maximum reliability. The innovative stepped M6 flanged washer centers the string post securely through the hollow screw, preventing tilt without requiring step-drilled headstock holes.
Featuring permanently lubricated internal gearing using specialized Schaller grease, each unit offers maintenance-free longevity. Designed with a dual-pin mounting configuration spaced at 0.39 in. center-to-center with a 0.31 in. spacing to the string post center, it provides a solid anchor for a wide range of instrument builds and upgrades.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Gear Ratio
1:18
Weight per Single Tuner with Button (Small/Large)
Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including hollow screw
Button Bore Hole
Diameter 0.17 in. with driving surface 0.14 in.
Pin Spacing (Center-to-Center)
0.39 in.
Pin to String Post Center Distance
0.31 in.
Product Weight
0.13 lb
Post Material
Brass
Lubrication
Permanently lubricated