Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and tuning comfort with an upgraded 1:18 gear ratio. Each component is high-precision CNC-machined and surface-treated, featuring a self-locking drive mechanism that guarantees smooth, sensitive, and reliable tuning stability.
Constructed with premium brass string posts precisely fitted into the housing, these tuners ensure maximum durability and zero wear. The closed housing design comes permanently lubricated with Schaller special grease, providing completely maintenance-free performance over years of play.
Featuring the innovative stepped M6 flanged washer with a 0.39-inch (10 mm) diameter base, this machine head centers the string post securely over the banjo bolt without requiring a stepped peghead hole. It eliminates tilting moment and reduces mechanical stress, while maintaining identical installation dimensions to preceding models for hassle-free drop-in replacement.
| Gear Ratio | 1:18 |
| Weight per Tuner (Small / Large Button) | Metal (1.27 oz / 1.34 oz), Pearloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjo bolt |
| Button Borehole | 0.17 in diameter with 0.14 in drive flat |
| Brand | Schaller |
| Series | M6 Series |
| String Post Material | Brass |
| Flanged Washer Diameter | 0.39 in |
| Mounting Screw Size | M2.2 x 0.37 in (9.5 mm) |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
