Features COMPATIBILITY - These nozzles are compatible with a variety of hot air soldering stations, making them versatile and practical for various soldering applications. HIGH QUALITY MATERIAL - Made of high quality steel, these nozzles are durable and not prone to rust, ensuring long-lasting performance. Secure locking screw - The included locking screw effectively locks the nozzle and prevents hot air from escaping between the nozzle and the hot air gun pipe. MULTIPLE SIZES - With 8 different sizes available (from 3mm to 12mm), these nozzles provide flexibility and adaptability for different soldering projects. Exquisite Workmanship - These nozzles are carefully processed, resulting in a product with excellent workmanship and long service life. Features:Compatible for 850 850A 852 852D 852D+ and hot air soldering station with air pump. These nozzles are made of high quality steel and will not rust easily. With the locking screw, which can lock the nozzle tightly, so effectively avoid hot air flows out of the gap between the nozzle and the heat gun steel tube. 8pcs/set, including size:3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm. It is suitable for many types of hot air soldering stations, is manufactured to a high quality and has a long service life. Specifications: Material: Stainless Steel Shape: Round Diameter: Round 3/4/5/6/7/8/10/12mm Weight: 105g Box contents: 8 x nozzles. Package List