Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 sets a high standard for enclosed guitar tuning machines, featuring a precise 1:18 gear ratio for velvety smooth, highly accurate tuning and superior pitch stability. Each component is CNC-machined to exact tolerances, finished to perfection, and permanently lubricated with Schaller special grease for entirely maintenance-free operation.
Equipped with high-grade brass string posts engineered seamlessly into the housing, this machine head minimizes wear while maximizing performance. The stepped M6 flanged washer centers the string post securely through the banjo bolt without requiring a stepped headstock hole, eliminating tilting torque and reducing mechanical stress on both the post and mounting screws.
Designed with identical installation dimensions to its predecessor, the M6 135 allows for seamless drop-in replacement without modifying your instrument. Its precision self-locking drive and premium construction ensure reliable, stable tuning across demanding playing conditions.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) driving surface |
| 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 |
| Product Weight | 0.79 lb |
