Schaller M6 180 Guitar Tuning Machine

The Schaller M6 180 Guitar Tuning Machine represents the evolution of an industry-standard closed tuning machine, engineered with an optimized 1:18 gear ratio for velvety smooth, precise tuning. Each component is high-precision CNC-machined and surface-finished, utilizing a self-locking drive mechanism to deliver exceptional tuning stability and sensitive adjustment.
Crafted with premium brass string posts that fit snugly into the housing, this machine head prevents wear and ensures maximum tuning consistency over years of heavy use. The innovative stepped M6 flanged washer centers the string post securely through the threaded bushing without requiring step-drilled headstock holes, effectively neutralizing tilt and relieving mechanical pressure from both the post and rear mounting screw.
Permanently lubricated with Schaller special grease, the sealed design ensures completely maintenance-free operation. Engineered for direct drop-in replacement on modern headstocks, it offers seamless integration, superior craftsmanship, and legendary durability for professional guitarists.
Brand
Schaller
Model
M6 180
Gear Ratio
1:18
Post Material
Brass
Weight per Unit with Button (Small/Large)
Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including threaded bushing
Button Bore Hole
0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) flat driving surface
Lubrication
Permanently lubricated with Schaller special grease (maintenance-free)
Product Weight
0.13 lb