Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine delivers outstanding precision and tuning stability, featuring a refined 1:18 gear ratio for smooth and micro-fine adjustments. Designed to build on the legacy of the original 1966 closed-housing tuner, it incorporates modern engineering enhancements while preserving timeless aesthetic appeal.
Every component is precision CNC-machined and surface-finished, utilizing high-grade brass string posts engineered for wear-free durability and optimal coupling to the headstock. Sealed internal gears are permanently lubricated with Schaller special grease, providing completely maintenance-free performance and uniform operating tension over years of active play.
Featuring the innovative stepped M6 flanged collar with a 0.4 in (10 mm) base diameter, this design accurately centers the string post via the threaded bushing to eliminate tilt and relieve mounting screw stress without headstock stepped bore modifications. The housing fits effortlessly as a direct replacement for previous versions across solid and slotted headstocks.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Material | Brass Posts / Metal Housing |
| Weight | 0.13 lb |
| 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 driving surface 0.14 in (3.6 mm) |
| Collar Step Diameter | 0.4 in (10 mm) |
| Lubrication | Permanently lubricated with Schaller special grease |
