Features It is super sharp type which fits for crafted workmanship, soldering in a narrow space or revising the tin bridge emerging from chip soldering Don't leave your iron running for hours and hours if you are not using it. This can make the tip get black oxide cover These iron tips are made of copper and not electroplated, easy to tin and diamagnetic, suitable for lower temperature soldering Try to tin the tip as it heats. If you leave it on too long or run it too hot it will burn off the solder and go black again These soldering tips are suitable for 936, 937, 938, 969, 8586, 852D soldering station Description:Copper soldering tips are suitable for lower temperature soldering as they are not plated and proneto oxidation. This type is super sharp with its points shaped like a needle which is suitable for craftedworkmanship with care under low temperature. Get this set of tips and make your soldering work easier. Specification:Material: CopperColor: CopperOuter Diameter: approx. 6.7mm / 0.26"Inner Diameter: approx. 4.0mm / 0.16"Length: approx. 43cm / 16.93"Package Weight: approx. 36gModel: 900M-T-ITemperature Range: 200-480℃Applicable to: 936, 937 soldering station, etc.Quantity: 10pcs / bag For storing used iron tipsUse sponge to clean iron tip.Wrap them with tin solder.Turn off the power supply and wait until they cool.Put iron pen on the iron shelve. Package Included:1x bag of 10pcs Iron Tips 900M-T-I  Package List