Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for precision, tuning comfort, and enduring stability. Engineered with a refined 1:18 gear ratio, it ensures exceptionally smooth, accurate adjustments across all musical styles.
Every component is precision CNC-machined and surface-treated, featuring high-grade brass string posts engineered for maximum wear resistance. The self-locking drive and permanently lubricated sealed housing provide dependable, maintenance-free operation over extended use.
Featuring the innovative stepped M6 flanged washer, this tuning machine simplifies installation by reliably centering the string post without requiring stepped headstock drilling. Retaining identical mounting dimensions to its historic predecessor, it offers a direct, hassle-free replacement for existing instruments.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| String Post Material | High-Grade Brass |
| 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 hollow screw |
| Button Bore Hole | 0.17 in diameter with 0.14 in drive flat |
| Item Weight | 0.8 lb |
| Housing Type | Sealed |
| Lubrication | Permanent Special Grease |


















