Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets the benchmark for enclosed guitar tuning machines, offering an improved 1:18 gear ratio for exceptionally precise and smooth tuning. Every component is CNC-machined to exacting tolerances and permanently lubricated with Schaller special grease for maintenance-free operation and lasting durability.
Equipped with high-grade brass posts engineered for wear-free performance, the M6 90 ensures maximum tuning stability. The stepped M6 flanged washer centers the string post securely without requiring stepped peghead drilling, effectively eliminating tilt and relieving stress from both the post and mounting screws.
Featuring the exact installation dimensions of its predecessor, this tuning machine allows for straightforward replacement without modifications. Designed for versatile configurations, it delivers reliable self-locking performance and flawless acoustic and electric guitar tuning control.
| Brand | Schaller |
| 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 |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Individual Tuner Weight (Metal Button Small / Large) | 1.27 oz / 1.34 oz (36 g / 38 g) |
| Individual Tuner Weight (Perloid Button Small / Large) | 1.06 oz / 1.09 oz (30 g / 31 g) |
| Individual Tuner Weight (Ebony Button Small / Large) | 1.06 oz / 1.09 oz (30 g / 31 g) |
| Total Weight | 0.79 lb |
