Features: Highly versatile, suitable for a variety of hot air desoldering stations. The nozzle is made of stainless steel,not easy to rust. There is a locking screw to lock the air nozzle, effectively avoiding the leakage from the interval between the tuyere and the hot air gun outlet pipe. General commonly used 850 hot air gun 3mm 4mm 5mm 6mm 7mm8mm10mm 12mm nozzle air gun nozzle BGA blow welding hot air desoldering typhoon nozzle, can be combined to a set. There are 8 different sizes of nozzle to meet your differnet needs. Specification: Shape:Circular Nozzle Inner Diameter:3mm / 0.12in 4mm / 0.16in 5mm / 0.2in 6mm / 0.24in 7mm / 0.28in 8mm / 0.31in 10mm / 0.39in 12mm / 0.47in Suitable for Hot Air Gun:850 850A 852 852D 852D+ 950 and air pump type hot air welding table. Package List: 8*Gun Nozzle