Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents high-precision engineering, setting a worldwide standard for closed tuning machines. Engineered with a refined 1:18 gear ratio, it delivers exceptionally smooth, sensitive, and precise tuning stability for any standard solid headstock configuration.
Crafted with CNC-machined components and high-grade brass posts, each tuner fits precisely into the housing to ensure wear-free, consistent operation. The sealed enclosure features permanent lubrication with specialized grease, guaranteeing completely maintenance-free performance over years of use.
Equipped with an innovative stepped M6 flanged collar, this tuner centers the string post securely through the hollow screw without requiring stepped headstock drilling. This design eliminates tilting torque and relieves mechanical stress from both the post and mounting screw, matching original M6 installation dimensions for direct replacement.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| 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) including hollow screw |
| Product Weight | 0.79 lb |
