Abstract: The invention provides a nozzle box for the heat treatment of veneering in a veneer dryer, where hot air is fed via nozzles on the side of the nozzle box disposed toward the veneering onto the surface of the passing veneering. The edges of the nozzle holes are bent in the direction toward the veneering, and they form funnel-shaped holes for the outflowing hot air. The funnel-shaped holes are recessed toward the inside of the nozzle box and are disposed in a region beat out inwardly and the beat out edges have an about circular cross-section. In addition, a bevel is provided to improve the guiding of the veneer sheets.