There are a total of 8pcs/set, include size:3mm,4mm,5mm,6mm,7mm,8mm,10mm,12mm; The Heat Nozzle is compatible for 850A 852 852D 852D+ and air pumps type hot air soldering station. These hot air nozzles are adopted of good steel, which is not easy to rust, stable and Nozzle is used stainless steel materials, strong and has a long service life; With the lock screw which can lock the nozzle firmly, so effectively avoid hot out from the gaps between the nozzle and the heat air outlet steel pipes;, Manufacturer: Syanjin