These nozzles are adopted of good quality steel, not easy to Compatible for 850 850A 852 852D 852D+ and air pump type hot air soldering station With the lock screw which can lock the nozzle firmly, so effectively avoid hot air flow out from the gap between the nozzle and the heat gun air outlet steel pipe 8pcs/set, include size: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm It is suitable for many kinds of hot air soldering station, exquisite workmanship, with long service life, Manufacturer: GGFFJ