D32 Series Laser Cutting Nozzle — Precision-Crafted Consumables for Fiber Laser Cutting Systems The D32 laser cutting nozzle is one of the most widely used consumables on modern fiber laser cutting machines. Mounted at the very bottom of the laser cutting head, directly between the focusing lens assembly and the metal sheet, the nozzle does far more than simply blow gas — it shapes the assist-gas flow, stabilizes the cutting kerf, protects the collimating and focusing optics