Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 sets an industry benchmark for precision and tuning stability, featuring a refined 1:18 gear ratio that ensures smooth and accurate adjustment. Built upon the legendary enclosed design originally introduced in 1966, this modern iteration incorporates advanced engineering enhancements while maintaining classic aesthetic appeal.
Precision CNC-machined components and high-grade brass string posts guarantee long-lasting performance and zero wear. The innovative stepped M6 flanged washer reliably centers the string post through the headstock bushing, eliminating lateral tilt and taking pressure off both the post and mounting screws without requiring stepped drilling.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, the M6 180 directly replaces previous generations without headstock modification. It delivers exceptional durability, sensitive tuning response, and rock-solid pitch retention for electric and acoustic guitars.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | High-Grade Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| 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) |
| Item Weight | 0.13 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |





















