Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers state-of-the-art precision and smooth tuning performance with its improved 1:18 gear ratio. All components are CNC-machined to exacting tolerances, finely finished, and feature a self-locking drive for consistent, sensitive, and stable tuning.
Crafted with premium brass string posts precisely fitted into the housing, this machine head provides maximum tuning stability and wear-free operation. The enclosed housing is permanently lubricated with Schaller special grease, ensuring a completely maintenance-free lifespan.
Featuring the innovative stepped M6 flanged washer with a 0.4 in diameter base, this tuner reliably centers the post without requiring a stepped headstock hole. This design eliminates tilting moment, relieves mechanical stress on both post and rear mounting screws, and secures dependable performance.
| Brand | Schaller |
| Model Number | 1003 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Product Weight | 0.8 lb |
| String Post Material | Brass |
| Weight per Single Tuner with Button (Small / Large) | Metal (1.3 oz / 1.3 oz), Perloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including banjonut |
| Button Bore Hole | 0.17 in diameter with 0.14 in drive flat |
| Pin Spacing (Center to Center) | 0.4 in |
| Distance from Pins to String Post Center | 0.3 in |
| Lubrication | Schaller special grease (maintenance-free) |


















