Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and tuning comfort with an advanced 1:18 gear ratio. Continuing the legacy of the original closed-housing design established in 1966, this modern iteration incorporates CNC-machined components and surface finishes for exceptionally smooth, stable operation.
Engineered for maximum reliability, every post is crafted from high-grade brass and precisely fitted to eliminate wear. The innovative stepped M6 flanged washer centers the string post securely via the hollow screw, preventing tilt without requiring stepped drilling in the headstock.
Featuring identical installation dimensions to its predecessor, the M6 135 allows direct replacement on compatible instruments. High-performance internal lubrication guarantees maintenance-free performance and long-lasting tuning stability.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Weight | 0.13 lb |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Included Hardware | 6 banjos/hollow screws, 6 flanged washers, 6 mounting screws (M2.2 x 9.5) |




















