Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets the benchmark for closed guitar tuning machines with a refined 1:18 gear ratio that delivers velvet-smooth action and precise tuning accuracy. Every component is CNC-machined to exact tolerances, featuring precision-fitted brass posts and a self-locking drive mechanism that ensures lasting tuning stability and wear-free performance.
Equipped with Schaller's innovative stepped flanged washer, this design eliminates the need for stepped peghead bore holes by centering the string post directly via the banjo bolt. This prevents tipping movement and reduces stress on both the string post and rear mounting screws for a secure, trouble-free installation.
Permanently lubricated with specialized Schaller grease for maintenance-free operation, the M6 90 maintains the identical mounting dimensions of its classic predecessor, allowing for seamless drop-in replacement without instrument modifications.
| Gear Ratio | 1:18 |
| SKU | 10050423.06.36 |
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Series | M6 Series |
| String Post Material | Brass |
| Manufacturing Process | CNC-Machined |
| Lubrication | Permanent Special Grease (Maintenance-Free) |
| Weight | 0.79 lb |
| Button Hole Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Unit (Small / Large 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) |
