Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 tuning machine delivers high-precision instrument tuning with an upgraded 1:18 gear ratio for smooth, accurate operation. Engineered with CNC-machined components and high-grade brass posts, these closed tuners provide exceptional tuning stability, self-locking drive functionality, and permanent internal lubrication with Schaller special grease for completely maintenance-free performance.
Featuring the innovative stepped M6 flanged washer with a 0.39 in (10 mm) base diameter, this design reliably centers the string post without requiring a stepped headstock bore. The stepped washer eliminates tilting torque while relieving mechanical stress from both the string post and rear mounting screw, protecting the headstock and prolonging tuner life.
Designed as a direct replacement for previous M6 iterations, the M6 180 installs smoothly without headstock modifications. Every unit comes complete with mounting hardware and hollow screws, offering unmatched precision and reliable tuning integrity for discerning guitarists and luthiers.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Maintenance-free permanent lubrication (Schaller special grease) |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Single Unit Weight (Small / Large Button) | 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) |
| Total Weight | 0.79 lb (0.36 kg) |
