Schaller M4 90 Light Bass 2L2R Black

The Schaller M4 Machine Head Black is a chrome locking tuner head for bass guitars. The M4 has a 14 mm bore diameter and feature large wings with a black finish. The M4 works like a normal machine head but with no need to wind the string up, it simply locks into place with the clamp screw and can be tuned instantly. 

The main features of The Schaller M4 Machine Head Black include:

• For bass guitars
• Arrangement: 3 left + 3 right
• Finish: Black
• Ratio: 1 : 16
• Bore mm: 14