MECHANIC Fly Line Special Precision Pure Copper Welding Head Tip For 936 Soldering Iron Station Soldering Iron Tips _x000D_ MECHANIC Fly line Special Precision Welding Tool Lead-Free Pure Copper Soldering Iron Head For 936 Soldering Station Solder Tip _x000D_ _x000D_ _x000D_ _x000D_ Features: _x000D_ _x000D_ _x000D_ _x000D_ 99% Pure copper _x000D_ _x000D_ Made of high-strength and heat-resistant copper for durable use. _x000D_ _x000D_ It has high safety and stable performance. _x000D_ _x000D_ Strong corrosion resistance. _x000D_ _x000D_ _x000D_ _x000D_ Its pointed end shaped like a needle that is suitable for crafted workmanship, for example, fit the alarm fob of a car, micro switch had popped off the small circuit board and the contacts for the micro switch are smaller than micro (smaller than a pin head), or soldering in a narrow space, revising the tin bridge emerging from chip soldering. It makes soldering work delicate and easier. _x000D_ _x000D_ _x000D_ _x000D_ Preservation method: _x000D_ _x000D_ _x000D_ _x000D_ Easy to clean, use the sponge to polish the surface. Please do not leave them exposed to the air, better wrap them with tin. Don't leave your iron tip running for hours and hours if you are not using it. This can make the tip get black oxide cover. (If you leave it on too long or run it too hot it will burn off the solder and go black. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_