Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a high standard for enclosed guitar tuning machines, featuring an advanced 1:18 gear ratio that provides precise and ultra-smooth tuning responsiveness. Every component is CNC-machined to exacting tolerances, surface-finished, and driven by a self-locking mechanism for dependable pitch stability.
Engineered with premium brass string posts and permanently lubricated with Schaller special grease, these maintenance-free tuning machines resist wear and provide lasting durability. The innovative stepped flanged washer centers the string post precisely, eliminating tilt and removing stress from both the post and the rear mounting screw.
Featuring the same mounting dimensions as its classic predecessor, the M6 90 installs seamlessly without headstock modifications. This versatile series offers exceptional tuning stability and craftsmanship suited for premium electric and acoustic instruments.
| Brand | Schaller |
| Model | M6 90 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machines |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight | 0.79 lb |
| Single Unit Weight with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including threaded bushing |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with drive flat 0.14 in (3.6 mm) |
| Lubrication | Permanently lubricated with Schaller special grease |
