Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and smooth operation with an improved 1:18 gear ratio. Designed with high-precision CNC-machined components and surface finishes, it features a self-locking drive that provides consistent, sensitive, and stable tuning performance. All string posts are crafted from high-grade brass and fitted precisely into the housing to guarantee maximum tuning stability and wear-free longevity.
Equipped with the innovative stepped M6 flanged washer, this tuning machine simplifies installation by reliably centering the string post via the banjo bolt. This eliminates the need for a stepped hole in the headstock, effectively removing tilting torque and taking pressure off both the string post and rear fixing screw. Sealed permanently with specialized Schaller grease, each unit is completely maintenance-free.
Sharing identical mounting dimensions with its predecessor model, the M6 135 allows direct replacement without instrument modifications. Available in multiple locking configurations and finishes, it includes high-grade mounting hardware for straightforward installation and dependable performance.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | High-grade Brass |
| Lubrication | Permanent Special Grease Lubrication (Maintenance-Free) |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Product Weight | 0.79 lb |
| Weight per Single Tuner with Metal Button (Small/Large) | 1.27 oz / 1.34 oz (36 g / 38 g) |
| Weight per Single Tuner with Perloid Button (Small/Large) | 1.06 oz / 1.09 oz (30 g / 31 g) |
| Weight per Single Tuner with Ebony Button (Small/Large) | 1.06 oz / 1.09 oz (30 g / 31 g) |
| Included Hardware | 6 Banjo Bolts, 6 Flanged Washers, 6 Mounting Screws (M2.2 x 9.5) |
