Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers precise tuning and exceptional stability with an advanced 1:18 gear ratio. Designed with high-precision CNC-machined components and surface finishes, it features a self-locking drive mechanism that guarantees smooth, sensitive, and reliable operation. High-grade brass posts are fitted into the sealed housing to ensure maximum wear resistance and tuning accuracy.
Featuring the innovative stepped M6 flanged washer, this tuning machine simplifies installation while centering the string post directly through the banjo bolt. This specialized design eliminates tilt torque, relieving mechanical stress from both the string post and the rear mounting screw without requiring stepped peghead drilling. All closed housings are permanently lubricated with proprietary grease for maintenance-free longevity.
Built with the exact mounting dimensions of its classic predecessor, the M6 135 serves as a direct drop-in replacement without requiring guitar modifications. It comes complete with mounting screws, flanged washers, and banjo bolts for standard solid headstock installations.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.13 lb |
| Button Bore Hole | 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) including banjo bolt |
| Included Hardware | 6 Banjo bolts, 6 Flanged washers, 6 Mounting screws (M2.2 x 0.37 in / 9.5 mm) |
