Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine features a 1:18 gear ratio designed for precise, velvet-smooth tuning and exceptional stability. Precision CNC-machined components with self-locking drives ensure delicate and dependable operation across various playing styles.
Crafted with durable brass string posts fitted directly into the sealed housing, each unit is permanently lubricated with Schaller special grease for maintenance-free longevity. The stepped M6 flanged washer reliably centers the string post through the banjonut, eliminating tilting moments and avoiding the need for stepped headstock holes.
Sharing exact installation dimensions with its predecessor, this tuner allows effortless direct replacement without headstock modifications. High-grade construction materials deliver reliable pitch retention and wear-free performance for both solid and slotted headstocks.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Schaller Special Grease, Sealed & Maintenance-Free |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Flanged Washer | Stepped M6 washer, 0.39 in (10 mm) base diameter |
| Single Unit Weight (Small / Large Button) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid / Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Product Weight | 0.13 lb |
