3pcs 0.3mm MK8 TC4 Titanium Alloy M6 Thread Nozzle For 3D Printer Reprap Makerbot
These nozzles are very light weight, and anything that reduces the mass of the hot end must be good. We shall see if they outlast the standard brass nozzles, but at this price, they must be worth a try. Thermal conductivity is much less than brass, so maybe up the temperature by 5 or 10 degrees. Your mileage may vary ...