Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine features a refined 1:18 gear ratio that ensures precise, velvety-smooth tuning operation and maximum stability. High-precision CNC-machined components with premium surface finishes and a self-locking drive deliver smooth, sensitive, and dependable adjustment.
Equipped with high-grade brass string posts engineered precisely into the housing, this tuning machine guarantees exceptional wear resistance and long-lasting tuning stability. The stepped M6 flanged collar centers the string post securely via the banjo bolt, eliminating tilt torque and protecting both the post and mounting screw without requiring stepped headstock holes.
Permanently lubricated with Schaller special grease, the enclosed mechanism operates completely maintenance-free. It shares identical mounting dimensions with previous M6 90 generations for direct drop-in replacement without headstock modifications.
| Brand | Schaller |
| Model Number | 1005 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner 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 |
| Lubrication | Permanently lubricated with Schaller special grease |
