Schaller M4 90 bass tuning keys 2+2 Chrome

Experience the lighter side of heavy duty. M4 90 (Light) - legendary Schaller quality at a stunning 40% less weight. M4 specs, looks and superior performance define this tuner as a true no-compromise where weight reduction is essential.
A special female screw guarantees precise positioning and fixing of the shaft.
High gear ratio of 1:20 ensures a very precise tuning.
All sealed tuners are lubricated with Schaller special grease for lifetime maintenance-free service.
All parts are precision-crafted and surface-finished, the self-locking drive ensures an even, delicate and steady tuning.
All string posts are made of high-grade aluminium and fitted into the housing with utmost precision, ensuring the best possible tuning accuracy and wear resistance.