Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine offers precision engineering and tuning comfort with an upgraded 1:18 gear ratio. Each component is CNC-machined to exacting tolerances and permanently lubricated with Schaller special grease, ensuring smooth, sensitive, and maintenance-free operation.
Equipped with high-grade brass string posts and a stepped M6 flanged washer, this tuner guarantees solid post centering and easy mounting without requiring a stepped peghead bore. The design effectively eliminates tilting torque and relieves mechanical stress on both the post and mounting screw.
Featuring dual positioning pins spaced 0.39 in (10 mm) center-to-center with a 0.31 in (8 mm) distance from the post center, the M6 Pin delivers rock-solid stability and modern performance while maintaining housing compatibility with earlier single-pin versions.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| 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 |
| Button Bore Hole | 0.17 in diameter with 0.14 in driving surface |
| Pin Spacing (Center-to-Center) | 0.39 in |
| Pin-to-Post Center Distance | 0.31 in |
| Material | Brass Posts, CNC-Machined Housing |


















