Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 represents the modern evolution of the legendary original sealed tuning machine. Featuring a refined 1:18 gear ratio, it delivers velvety smooth operation, enhanced precision, and dependable tuning stability for discerning musicians.
Every component is precision CNC-machined and finished to exacting standards, incorporating high-grade brass string posts engineered for maximum durability. Permanently lubricated with specialized Schaller grease, these enclosed machine heads provide completely maintenance-free performance.
Equipped with an innovative stepped flanged washer, the M6 90 reliably self-centers the string post through the banjo bolt without requiring stepped peghead drilling. It matches the original installation dimensions for a seamless, drop-in replacement on standard headstocks.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Model | M6 90 |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Single Tuner Weight with Button (Small / Large) | 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) |
| Product Weight | 0.79 lb |
