Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine represents precision engineering with an advanced 1:18 gear ratio, delivering ultra-smooth and accurate tuning performance. Built with CNC-machined components and premium brass posts fitted into sealed housings, this tuning machine provides exceptional tuning stability and completely maintenance-free operation via specialized permanent lubrication.
Featuring the innovative stepped M6 flanged washer, the system centers the string post securely through the hollow screw without requiring stepped headstock drilling. This smart design eliminates tilting moments and absorbs tension from both the post and mounting screw for extended hardware longevity.
Engineered to fit seamlessly as a direct replacement for previous M6 iterations, the unit provides rock-solid reliability across various headstock configurations. High-grade materials and self-locking drive mechanics ensure durable, wear-free performance for discerning musicians.
| Brand | Schaller |
| Model | M6 180 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| 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 |
| Washer Type | Stepped M6 Flanged Washer (0.39 in / 10 mm diameter) |
| 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) |
| Lubrication | Schaller Special Grease (Maintenance-free) |
| Mounting Screws | M2.2 x 9.5 mm |



















