Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and tuning comfort with an upgraded 1:18 gear ratio. Engineered as the modern evolution of the legendary original closed tuner, it combines time-tested reliability with refined mechanical performance.
Every component is CNC-machined to exact tolerances and permanently lubricated with Schaller special grease for smooth, maintenance-free operation. High-grade brass posts and a self-locking drive mechanism ensure maximum tuning stability and long-term wear resistance.
Featuring the innovative stepped M6 flanged washer, this tuner centers the string post securely without requiring stepped headstock drilling. It shares identical installation dimensions with its predecessor, allowing seamless replacement without headstock modifications.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| 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 | Diameter 0.17 in (4.2 mm) with drive flat 0.14 in (3.6 mm) |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
