Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents high-precision instrument engineering, establishing flawless tuning comfort and exceptional stability. Featuring a refined 1:18 gear ratio, every component is CNC-machined and finished to deliver smooth, sensitive, and reliable operation. High-grade brass string posts are fitted with exacting tolerances into the housing to prevent wear and ensure maximum pitch retention.
Equipped with Schaller's innovative stepped flanged washer, this tuner simplifies installation by reliably centering the string post through the banjonut. This design eliminates tilting torque and reduces mechanical strain on both the string post and rear fixing screw, making headstock step-drilling unnecessary. Closed housings come permanently lubricated with Schaller special grease for completely maintenance-free performance.
Retaining the identical installation dimensions of its classic predecessor, the M6 90 allows for direct, drop-in replacement without instrument modifications. Its self-locking drive and premium materials provide guitarists with professional-grade performance and dependable tuning accuracy across any playing environment.
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
