2"- 12 Hole Wide Swirl Titanium, Coated Steel Nozzles with No O-Ring. 12 Hole Wide Swirl nozzle is a 2 inch steel bulk nozzle coated in Titanium to extend nozzle life and create better heat transfer. Swirl Nozzle for Replacement for Nordson® AD-31 and Glenmar HG12000 hand guns.