Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 series guitar tuning machine sets a high standard for closed tuning machines, combining timeless design with modern engineering. Engineered with a 1:18 gear ratio, it ensures precise, velvety-smooth tuning and dependable pitch stability for any playing style.
Every component is CNC-machined to exacting tolerances, featuring precision brass posts and a self-locking drive for frictionless, maintenance-free operation lubricated with Schaller special grease. The innovative stepped M6 flanged washer centers the string post securely without requiring stepped peghead drilling, eliminating tilt torque and taking pressure off both the post and rear mounting screws.
With identical mounting dimensions to its classic predecessor, this tuning machine drops directly into existing setups without modifications. It provides outstanding longevity, refined performance, and rock-solid reliability for guitarists seeking premium hardware.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including threaded bushing |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm) |
| Post Material | Brass |
| Product Weight | 0.79 lb |
