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 1966 closed-housing design, this modern iteration incorporates state-of-the-art manufacturing to ensure velvety-smooth operation and superior mechanical stability.
Every component is precision CNC-machined and surface-treated, featuring high-grade brass string posts engineered seamlessly into the housing to prevent wear. The internal self-locking drive and permanent lubrication with Schaller special grease ensure maintenance-free performance and exceptional pitch retention under heavy playing conditions.
Installation is streamlined thanks to the innovative stepped M6 flanged washer, which centers the string post precisely through the banjo bolt and eliminates tilting torque without requiring a stepped headstock bore. With dimensions identical to its predecessor, it offers an effortless drop-in replacement for solid and slotted headstocks.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Lubrication | Schaller Special Grease (Permanently Lubricated) |
| 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) |
| Total Set Weight | 0.79 lb |
