Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine delivers outstanding precision and smooth tuning comfort with an optimized 1:18 gear ratio. Continuing the legacy of the original sealed tuner standard established in 1966, this refined design incorporates high-precision CNC-machined components and high-grade brass posts engineered for long-lasting wear resistance and tuning stability.
Featuring the innovative stepped M6 flanged collar, this tuner ensures effortless installation and solid post centering via the hollow screw, removing lateral tilt and taking mechanical strain off both the post and rear mounting screw. The self-locking drive and internal permanent lubrication using specialized grease guarantee maintenance-free and consistent performance.
Designed with a direct-replacement form factor, the M6 180 installs seamlessly without headstock modifications. Every unit is manufactured to precise tolerances, providing reliable, velvety-smooth adjustment and exceptional pitch retention across demanding musical applications.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Product Weight | 0.13 lb |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Flanged Collar Diameter | 0.39 in (10 mm) |
| Mounting Screw Size | M2.2 x 9.5 |





















