Schaller Machines Bass 2/2-Black M4SB-10280403
Schaller Bass "M4S Series" Open backed machine heads featuring oversized gear wheels, heavy duty shafts and large case buttons for a comfortable feel. Gear ratio: 1:22. M4SB Black (2 a side)
Half-open bass tuner with extra strong gear and an appropriately sized string post. Gear ratio 1:22.
A special female screw guarantees precise positioning and fixing of the shaft.