Schaller M6 Pin Guitar Tuning Machine

The Schaller M6 Pin tuning machine sets high standards for closed tuners with an advanced 1:18 gear ratio that provides velvety-smooth action and precise tuning control. Every component is CNC-machined to exacting tolerances, surface-finished for premium performance, and permanently lubricated with Schaller special grease for maintenance-free operation.
Engineered for maximum tuning stability, each string post is crafted from premium brass and precision-fitted into the housing. The innovative stepped M6 flanged washer eliminates tilting torque and centers the post reliably through the hollow screw, removing the need for a stepped hole in the headstock.
Equipped with dual rear locating pins spaced 0.39 in (10 mm) center-to-center with a 0.31 in (8 mm) spacing to the post center, this machine replaces legacy single-pin M6 housings seamlessly. Package includes hollow screws, stepped washers, and mounting hardware for straightforward installation.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Gear Ratio
1:18
Post Material
Brass
Weight per Single Tuner 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 hollow screw
Total Weight
0.79 lb
Button Bore Hole
0.17 in diameter with 0.14 in driving surface
Pin Spacing (Center to Center)
0.39 in
Distance Between Pins and Post Center
0.31 in
Lubrication
Schaller Special Grease (Maintenance-Free)