Internal Heating Design: Features an internal heating structure for quick and even heat distribution, improving work efficiency and reducing waiting time during soldering tasks Wear Resistant: Crafted with premium copper and precisions manufacturing to enhances wear resistance and oxidation, extending the soldering tip ’ s lifespans Wide Compatibility: Suitable for 936 and 900M series soldering irons, suitable for electronics enthusiasts and repair engineers to meet soldering needs without frequent tool changes Copper Construction: Made from copper for excellent thermal conductivity and resistance, ensuring fast heating and soldering for various electronic components Multipurpose Application: Ideal for electronics DIYer, device repairs, teaching labs, and prototyping, helping students, engineers, and hobbyists tackle soldering challenges, Manufacturer: our fave