Schaller M4 90 chrome Light bass tuner 4-Left 

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. Gear ratio 1:20, weight 44g/piece. 4 threaded bushings, 4 washers, 4 mounting screws.

10540201.22.70