The Bach 42AF Stradivarius Series Axial Flow F-attachment trombone features superior engineering, precision fabrication and unmatched performance in a professional-level instrument. The 42AF series features a patented axial flow valve with sealed ceramic top and bottom bearings that allow for smooth balanced action with low-maintenance, no surface wear and superior compression. The mini-ball valve linkage allows a free, responsive movement, while the granadilla wood thumb lever offers an elegant look and comfortable feel. This trombone also features a new single-draw handslide fabrication process for a more consistent slide surface that allows a quiet performance and a smooth feel. The fixture-mounted construction process allows for proper alignment and freer vibration throughout the instrument.

The Bach 42AF includes a case and mouthpiece.