Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers exceptional tuning accuracy and smooth operation with its refined 1:18 gear ratio. Designed as an evolution of the legendary original sealed tuner introduced in 1966, this model incorporates modern engineering enhancements while retaining the classic dimensions for straightforward replacement without modifications.
Every component is CNC-machined with high precision and premium surface finishing, utilizing high-grade brass posts fitted seamlessly into the housing for maximum tuning stability and wear resistance. The self-locking drive and lifetime lubrication with specialized Schaller grease ensure completely maintenance-free performance.
Featuring the innovative stepped M6 flanged washer, this tuning machine reliably centers the string post via the hollow bolt without requiring a stepped peghead bore. This design effectively eliminates tilting torque and absorbs mechanical stress from both the post and the rear mounting screw.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| Post Material | Brass |
| Lubrication | Special Schaller grease (maintenance-free) |
| Button Borehole | Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm) |
| Weight per Single Tuner with Button | Metal: 1.27 oz / 1.34 oz (36 g / 38 g), Pearloid: 1.06 oz / 1.09 oz (30 g / 31 g), Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) including hollow screw |
