Premuim Quality: Thread soldering tip is quality brass materials, not easily oxidized, strong and and . Features: ground copper tips are plated with iron, and , long lasting use life. Easy to use, not easily oxidized. Suitable For: This USB welding head suitable for usb soldering iron head E10 interface battery soldering iron soldering iron head threaded soldering iron head. E10 Welding Head: The E10 soldering tips set provide you with all the soldering iron accessories you'll need for maximum results. Easy to Use: All soldering iron tips can be used, after soldering, there be tin slag on the soldering iron tip, just wipe it off with this sponge, and the tin slag fall off., Weight: 0.11243575362 pounds, Manufacturer: Butyge