Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine represents precision engineering with an advanced 1:18 gear ratio, delivering ultra-smooth operation and superior tuning stability. Originally establishing the benchmark for enclosed tuners in 1966, this updated design introduces refined mechanical innovations while retaining its legendary reliability.
Crafted with high-precision CNC-machined components and premium brass string posts, the M6 180 ensures wear-free longevity and a self-locking drive for steady, sensitive tuning adjustments. Each enclosed unit is permanently lubricated with specialized Schaller grease to guarantee completely maintenance-free performance.
Featuring the innovative stepped M6 flanged washer, this tuning machine simplifies installation by reliably centering the string post via the hollow bolt without requiring stepped headstock drilling. This optimized structure eliminates tilting torque and absorbs mechanical strain across the post and mounting screws.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | High-Grade Brass |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| 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 bolt |
| Product Weight | 0.79 lb |
| Lubrication | Permanently lubricated with Schaller special grease |



















