Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision and tuning comfort with an upgraded 1:18 gear ratio. Designed as a modern evolution of the classic closed tuner, it delivers smooth operation and dependable pitch stability.
Precision CNC-machined components and high-grade brass string posts ensure wear-free performance and precise alignment. Each unit is permanently lubricated with Schaller special grease, making the closed mechanism completely maintenance-free.
Featuring the innovative stepped M6 flanged washer, this tuner allows straightforward mounting and reliable shaft centering without requiring stepped headstock drilling. It maintains identical installation dimensions to its predecessor for easy, drop-in replacement.
| Brand | Schaller |
| Model | M6 135 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner with Button (Small/Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g), Perloid: 1.06 oz / 1.09 oz (30 g / 31 g), Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Product Weight | 0.13 lb |



















