Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 sets the standard for closed guitar tuning machines with an advanced 1:18 gear ratio that provides velvety-smooth action and precise tuning control. CNC-machined components with self-locking drive mechanisms guarantee uniform tuning stability and long-lasting performance.
Featuring high-grade brass string posts engineered for wear-free durability, each unit is permanently lubricated with Schaller special grease for maintenance-free operation. The innovative stepped M6 flanged washer centers the post reliably through the banjo bolt without requiring counterbores in the headstock, effectively eliminating tilting torque.
Designed to maintain the identical installation dimensions of its predecessor, the M6 135 allows direct replacement without instrument modifications. Available in a wide range of configurations and finishes, it provides rock-solid reliability for demanding players.
| Brand | Schaller |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Button Borehole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive surface |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Pearloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Product Weight | 0.13 lb |
| String Post Material | Brass |
| Mounting Screws | M2.2 x 9.5 mm |
