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. Continuing the legacy of the original closed tuning machine design first introduced in 1966, this model features high-precision CNC machining and surface finishing for smooth, sensitive, and stable tuning performance.
Crafted with premium brass string posts precisely fitted into the housing, each unit ensures maximum tuning stability and wear-free operation. The permanently lubricated internal mechanism utilizes Schaller specialized grease to guarantee completely maintenance-free performance over its lifespan.
An innovative stepped collar washer simplifies installation and centers the string post reliably without requiring a stepped peghead bore. This design eliminates tilting torque and reduces mechanical strain on both the string post and rear mounting screw, perfectly matching the original mounting dimensions for direct replacement.
| Brand | Schaller |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight per Single Tuner with Button (Small/Large) | Metal (0.08 lb/0.08 lb), Perloid (0.07 lb/0.07 lb), Ebony (0.07 lb/0.07 lb) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight | 0.13 lb |
| Lubrication | Permanent lubrication with Schaller special grease |
