Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets the benchmark for enclosed guitar tuning machines, featuring a precise 1:18 gear ratio that guarantees smooth, velvet-like tuning and unmatched accuracy. Engineered with high-precision CNC-machined components and self-locking drive mechanics, it delivers consistent tuning sensitivity and rock-solid stability.
Crafted with premium brass posts fitted seamlessly into the housing, each tuner ensures wear-free longevity and peak performance. The innovative stepped M6 flange washer centers the string post securely through the banjo bolt, preventing tilt momentum, reducing mechanical stress, and eliminating the need for stepped headstock drilling.
Designed to match identical mounting dimensions of predecessor models for direct, modification-free retrofitting, every enclosed unit comes permanently lubricated with Schaller special grease for entirely maintenance-free operation across years of play.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| Individual Tuner Weight (Small/Large Button) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjo bolt |
| Button Hole Diameter | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive surface |
| Post Material | High-grade Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
