Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 series features an advanced 1:18 gear ratio, delivering unmatched tuning precision and smooth, velvety operation. Building upon the legendary sealed tuner architecture established in 1966, this updated design incorporates refined engineering for modern performance standards.
Precision CNC-machined components with a self-locking drive mechanism ensure consistent, sensitive, and stable tuning. Every post is crafted from high-grade brass and fitted precisely into the housing to maximize tuning stability, eliminate wear, and provide long-lasting reliability.
Equipped with an innovative stepped M6 flanged washer, the unit centers the string post securely via the banjo bolt without requiring a counterbore in the headstock. This configuration eliminates tilt torque and reduces mechanical stress on both the post and rear mounting screw.
| Brand | Schaller |
| Model | M6 135 |
| 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 | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
