Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine represents precision engineering with a refined 1:18 gear ratio, delivering ultra-smooth and accurate tuning stability. Building on the legacy of the original 1966 closed-housing design, this updated iteration features CNC-machined components and high-grade brass string posts fitted tightly within the housing to ensure wear-free performance.
An innovative stepped M6 flanged washer centers the string post automatically via the threaded bushing, eliminating the need for a stepped peghead bore. This design effectively absorbs tilting torque, reducing mechanical strain on both the tuner post and the rear mounting screw for optimal long-term durability.
Permanently lubricated with Schaller special grease, each enclosed unit is entirely maintenance-free. The self-locking drive ensures consistent, sensitive responsiveness, making it a drop-in replacement upgrade for classic solid headstock configurations.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Weight | 0.13 lb |
| Weight per Single Unit with Button (Small/Large) | Metal (0.079 lb / 0.084 lb), Perloid (0.066 lb / 0.068 lb), Ebony (0.066 lb / 0.068 lb) including hollow screw |
