Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and tuning comfort with its refined 1:18 gear ratio. Engineered with high-precision CNC machining and premium brass string posts, it ensures velvet-smooth, consistent adjustments and wear-free stability.
Equipped with an innovative stepped flanged bushing, this tuning machine simplifies installation by reliably centering the string post without requiring a stepped peghead bore. This design eliminates tilting torque and reduces mechanical stress on both the post and mounting screw.
Featuring permanent internal lubrication with Schaller specialty grease, each enclosed unit provides completely maintenance-free operation and seamless drop-in replacement matching previous model dimensions.
| 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 banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.79 lb |
| Brand | Schaller |
| Model | M6 90 |
| Series | M6 Series |
| String Post Material | Brass |
| Housing Type | Enclosed / Sealed |
