Specifications: Description:Made of metal material, long life, quick and even heating, and reliability.Great to replace the old and broken tip for your soldering iron tool.Notice: To maintain the performance of a soldering iron tip, a simple maintenance procedure is recommended:1.Operate at the lowest possible temperature (800°F (427°C) or lower. Operating at which is one of the main causes of detinning.2.For tip wiping: use only (sulfur-free) pure cellulose sponges; wet to the touch.3.Add rosin core solder of adequate diameter to the working end of the tip regularly.