Schaller Bass Machine Heads M4 90 (Light)

Elegance and Lightness for the Schaller Bass Age.

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.

technical specification

gear ratio 1:20, weight 44g per piece

scope of supply

4 threaded bushings, 4 washers, 4 mounting screws

technical drawings (without engagement)