Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed-type tuners, delivering unmatched tuning accuracy and smooth operation. Featuring a refined 1:18 gear ratio, every component is CNC-machined to exacting tolerances and permanently lubricated with Schaller special grease for maintenance-free performance.
Equipped with high-grade brass string posts and a self-locking drive mechanism, these tuners ensure exceptional pitch stability and resistance to wear. The stepped M6 flanged washer centers the string post reliably through the banjo bolt, eliminating tilt torque and protecting both the post and mounting screw without requiring stepped headstock drilling.
Designed with the exact mounting dimensions of its iconic predecessor, the M6 135 allows for seamless, drop-in replacement on standard headstocks without structural modifications. Its robust engineering and premium surface finish guarantee durable, sensitive tuning across demanding playing conditions.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| Individual Tuner Weight (Small/Large Button) | 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 (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Post Material | High-Grade Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
