Features: Sturdy Construction: Made from copper materials to withstand high temperatures and provide a long service life. Optimals Heat Transfer: Ensures efficient and consistent heat transfer for precise and reliable soldering results. There are total 4 shapes of soldering tips in this set and you can choose the proper-one for different soldering needs Versatile Use: Ideal for electronics assembly, repair, and prototyping, catering to both professional technicians and hobbyists. These soldering tips are suitable for 936, 937, 938, 969, 8586, 852D soldering stations Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Oxygen-free copper Surfaces Finishing: Blackening Length: Approx. 40.5mm42mm or 1.591.65 Outer Diameter: 6.7mm or 0.26 Inner Diameter: 4.0mm or 0.15 Temperature: 250°C Shape: I, 3C, 2.4D, K Quantity: 4pcs Suitable for: 936, 937, 938, 969, 8586, 852D soldering station Package List: 4pcs Iron Tips Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.