Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for precision and tuning stability. Engineered with an upgraded 1:18 gear ratio, it delivers ultra-smooth operation and fine adjustment accuracy. All components are CNC-machined to exacting tolerances, surface-finished, and permanently lubricated with Schaller special grease for completely maintenance-free performance.
Featuring high-grade brass string posts fitted precisely into the housing, the M6 135 ensures maximum wear resistance and stable pitch retention. The innovative stepped M6 flanged washer centers the string post securely through the banjo bolt, eliminating tilt torque, reducing mechanical stress on mounting screws, and removing the need for stepped headstock drilling.
Designed with identical installation dimensions to its predecessor model, the M6 135 allows direct drop-in replacement without instrument modifications. Each unit comes complete with premium mounting hardware, offering unmatched reliability and craftsmanship for demanding musicians and luthiers alike.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| 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 |
| Product Weight | 0.79 lb |
| Included Hardware | 6 x Banjo Bolts, 6 x Flanged Washers, 6 x M2.2 x 9.5 mm Mounting Screws |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
