Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets an industry benchmark with its advanced 1:18 gear ratio, delivering unmatched precision, smooth tuning action, and exceptional pitch stability. High-precision CNC-machined components and premium brass string posts are fitted with exacting tolerances, ensuring wear-free longevity and reliable performance.
Featuring the innovative stepped M6 flanged washer, this design eliminates tilting torque and centers the string post without requiring a stepped headstock bore. The permanent internal lubrication with specialized grease guarantees completely maintenance-free operation under heavy playing conditions.
Designed for versatile installation with a standard two-pin locating system, these sealed tuners securely anchor to your headstock to provide robust mechanical support and direct vibration transfer across all playing styles.
| Brand | Schaller |
| Model | M6 Pin |
| Gear Ratio | 1:18 |
| 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 | Diameter 0.17 in. with drive flat 0.14 in. |
| Product Weight | 0.79 lb |
| Material | Brass Posts, CNC-Machined Metal Housing |
| Pin Distance (Center to Center) | 0.39 in. |
| Distance from Pins to Post Center | 0.31 in. |
| Flanged Washer Diameter | 0.39 in. |
| Mounting Screws | M2.2 x 0.37 in. |
| Lubrication | Schaller Special Grease (Maintenance-Free) |




















