Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 tuning machine delivers exceptional tuning accuracy and smooth operation with its refined 1:18 gear ratio. Engineered with high-precision CNC machining and high-grade brass string posts, it ensures long-lasting wear resistance and unmatched tuning stability for electric and acoustic guitars.
Featuring the innovative stepped M6 flanged washer, this tuner allows effortless installation without requiring a stepped headstock bore. The stepped design reliably centers the string post through the banjo bolt, eliminating tilting moment and relieving stress on both the post and rear mounting screws.
Equipped with permanent Schaller special grease lubrication, the enclosed housing is completely maintenance-free. Designed as a direct drop-in replacement for earlier models, it provides smooth, velvety turning response and reliable performance across various locking and standard post configurations.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.13 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 banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with drive flat 0.14 in (3.6 mm) |
| String Post Material | Brass |
| Lubrication | Permanent Special Grease (Maintenance-Free) |





















