These iron tips are electroplated Iron and Nickel which protect them from oxidation, characterized by heat-resistant up to 480 and lifetime over 20000 welding joints with appropriate use. As the point is very sharp, it fits for crafted workmanship, for example, about car problem, once micro switch had popped off the small circuit board, you found that the contacts for the micro switch is smaller than micro (smaller than a pin head), or soldering in a narrow space also for revising the tin bridge emerging from chip soldering. How about getting this set and making your soldering work easier? Feature: Made of high quality oxygen-free copper which is of fast conductance and heat resistance up to 480 for durable use. Applicable to 936, 937 soldering station and so on with its pointed end shaped like a needle that is suitable for crafted workmanship, for example, fit the alarm fob of a car, like 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 those delicate, tighter connections much, much easier. If with appropriate use of iron tip, its lifetime can reach over 20000 welding joints. It has advantage of long life lasting and not easily oxidized, easy to install and use. It has high safety and stable performance. Quite easy to take and clean. Use the sponge to polish the surface. Please do not leave them exposed to the air, better wrap them with tin. Specification: Material: Copper Color: Silver Plating: Iron and Nickel (Finish) Outer Diameter: approx. 6.7mm / 0.26" Inner Diameter: approx. 4.0mm / 0.16" Length: approx. 43cm / 16.93" Package Weight: approx. 47g Model: 900M-T-I Applicable to: 936, 937, etc. Temperature Range: 200-480 Quantity: 10pcs / bag For storing used iron tips Use 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 Iron Tips