Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers refined performance and velvety smooth action backed by an optimized 1:18 gear ratio. Engineered for absolute precision, this closed-housing design ensures exceptional tuning stability and fine control.
Every component is CNC-machined from premium materials, featuring durable brass string posts perfectly fitted into the housing for maximum wear resistance. The self-locking drive and lifetime lubrication with Schaller special grease ensure maintenance-free reliability.
Featuring the innovative stepped M6 flanged washer, this tuning machine mounts cleanly while keeping the post solidly centered without requiring stepped peghead drilling. Direct retrofit compatibility makes upgrading seamless on guitars with standard installation dimensions.
| Brand | Schaller |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Material | Brass, Metal |
| 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 | 0.17 in diameter with 0.14 in driving surface |
