Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine features a precise 1:18 gear ratio that delivers smooth, velvety tuning and exceptional pitch stability. High-precision CNC-machined components with a self-locking drive ensure sensitive, reliable operation across all playing styles.
Equipped with premium brass string posts carefully fitted into the housing, this tuning machine provides maximum wear resistance and tuning accuracy. An innovative stepped M6 flanged collar centers the string post securely over the hollow screw without requiring a stepped headstock bore, effectively eliminating tilting torque and reducing strain on mounting hardware.
Featuring permanent lubrication with specialized grease, the closed housing is completely maintenance-free. With identical installation dimensions to its predecessor, it serves as a direct drop-in replacement for seamless instrument upgrades.
| Brand | Schaller |
| Model | M6 135 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight | 0.8 lb |
| Single Tuner Weight 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) including hollow screw |
| Included Items | 6 hollow screws (where applicable), 6 stepped flanged washers, 6 mounting screws (M2.2 x 9.5) |
