Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets the benchmark for closed guitar tuning machines with an advanced 1:18 gear ratio for velvet-smooth, highly precise tuning. Built upon the legendary design that defined enclosed tuners, this updated series features high-precision CNC-machined components and a self-locking drive mechanism that guarantees lasting tuning stability and backlash-free operation.
Crafted with premium brass string posts precision-fitted directly into the housing, the M6 90 tuner provides exceptional wear resistance. The innovative stepped M6 flanged washer reliably centers the string post without requiring a stepped peghead bore, eliminating tilting torque and removing unnecessary strain from both the post and the rear mounting screw.
Permanently lubricated with specialized Schaller grease for entirely maintenance-free performance, this tuning machine seamlessly matches the mounting dimensions of its predecessor for direct replacement without guitar modifications. It delivers optimal acoustic transmission, solid tuning integrity, and robust long-term reliability.
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button | 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) including hollow screw |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.79 lb |
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Post Material | High-Grade Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
