Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers exceptional tuning accuracy and velvet-smooth operation with its advanced 1:18 gear ratio. All components are precision CNC-machined and surface-treated, featuring a self-locking drive mechanism that guarantees consistent, sensitive, and reliable tuning stability.
Crafted with premium brass string posts fitted precisely into the housing, the M6 135 ensures maximum wear resistance and lifetime performance. Closed housings come permanently lubricated with Schaller special grease for completely maintenance-free service across years of playing.
Featuring the innovative stepped M6 flanged washer, it centers the string post securely via the threaded bush without requiring stepped peghead drilling. With identical mounting dimensions to its legacy predecessor, this tuning machine provides an effortless drop-in replacement upgrade.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight | 0.79 lb |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including threaded bush |
| Button Bore Hole | Diameter 0.17 in. (4.2 mm) with drive flat 0.14 in. (3.6 mm) |
| Included Hardware | 6 threaded bushes, 6 flanged washers, 6 mounting screws M2.2 x 9.5 |




















