Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry standard for closed-type tuners, delivering velvet-smooth operation and unmatched precision. Engineered with a 1:18 gear ratio, it provides sensitive, fine-tuned pitch adjustment and exceptional tuning stability. Each component is CNC-machined to exact tolerances and finished to ensure reliable, self-locking performance.
Crafted with premium high-grade brass posts fitted seamlessly into the housing, this tuning machine ensures zero play and maximum wear resistance. The innovative stepped M6 flanged washer centers the string post securely through the hollow screw, eliminating tilt torque and protecting mounting hardware without requiring stepped headstock drillings.
Permanently lubricated with Schaller special grease, the enclosed mechanism remains completely maintenance-free throughout its lifespan. Featuring identical mounting dimensions to its classic predecessor, it serves as a seamless drop-in replacement or high-performance upgrade for electric and acoustic guitars.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Weight per Unit 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) |
| Product Weight | 0.13 lb |
| Lubrication | Maintenance-free Schaller special grease |
