FD4 Dual Nozzle for HAP 1, WXHAP 200 The FD4 Dual Nozzle is a high-quality accessory for the hot air pencils HAP 1 and WXHAP 200 by Weller. This flat nozzle with a diameter of 1.5 mm and a distance of 10 mm is specifically designed for precise soldering and desoldering tasks. It allows for exact temperature control and an adjustable airflow, making it ideal for applications such as SMD repairs, shrinking of tubing, and drying of paints and adhesives. The rapid heating time and ergonomic design of the FD4 Dual Nozzle ensure efficient and comfortable handling. Additionally, integrated safety features like overheat protection and automatic shutdown provide reliable use in a professional environment.