This is a full set of the all the nozzle sizes you could want, including 12x 0.4mm nozzles as the most common and “standard” size needed.
Set of 24x brass nozzles in various sizes (2 x 0.2mm, 2 x 0.3mm, 12 x 0.4mm, 2 x 0.5mm, 2 x 0.6mm, 2 x 0.8mm, 2 x 1.0mm).