✦【 High Quality Material 】 ：The soldering tip is made of high-quality copper alloy material with nickel-plated surface and environmentally-friendly lead-free 900M. In addition, it is also resistant to corrosion, oxidation, high temperature, rapid heating and long service life. ✦【 Internal Heating Design 】 ：These Soldering Iron Tips feature an internal heating design that transfers heat very quickly and has a shorter warm-up time than external heating. They are characterized by high heating efficiency and small size and are suitable for welding small parts. In addition, they save energy and are less likely to leak than external heating. ✦【 Welding Sleeve 】 ：In addition to the soldering iron tips there is also a welded sleeve.This Welding Sleeve is used on the outside of the tip to protect the heater core and secure the iron head. The heat is not easily released into the air, so the heat utilization efficiency becomes high. ✦【 10 Different Soldering Tips 】 : These soldering heads have 10 pieces 900M series soldering, including 1 x 900M-T-K,1 x 900M-T-B,1 x 900M-T-I,1 x 900M-T-2C,1 x 900M-T-3C,1 x 900M-T-4C,1 x 900M-T-1.2D,1 x 900M-T-2.4D,1 x 900M-T-1.6D,1 x 900M-T-0.8D type soldering iron tips. You can choose the tip you want in different situations. Different soldering iron tips help to solder different items, very practical. ✦【 Wide Use 】 ：Suitable for SOP, QFP, Hakko, TENMA, ATTEN, QUICK, Aoyue, Yihua, Maplin, ABF soldering station,LED and board wiring for solder head replacement., Weight: 0.12566348934 pounds, Manufacturer: RMENOOR