Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine sets an industry benchmark for precision, tuning stability, and smooth operation. Engineered with a refined 1:18 gear ratio, it delivers velvety and exact tuning action, while high-precision CNC-machined components and self-locking drive mechanisms guarantee dependable performance.
Crafted with premium brass string posts carefully fitted to the housing, each unit features closed gearing permanently lubricated with specialized Schaller grease for completely maintenance-free longevity. The innovative stepped M6 flanged washer centers the string post securely and eliminates tipping strain on the post and rear mounting screws.
Designed as a direct drop-in replacement for previous versions without headstock modifications, this tuning machine supports flexible configurations including standard solid posts, slotted headstocks, and advanced Locking or TopLocking string-clamping systems.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | High-Grade Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive surface |
| 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) |
| Weight | 0.13 lb |



















