One-handed Operation Design: The soldering and desoldering pump has a simple structure and can be easily operated by both left-handed and right-handed users. Just tighten the pump with one hand and press the trigger button. Say goodbye to welding troubles: Introducing a high-power manual soldering tool that heats up in just 3 seconds, significantly improving soldering efficiency. Welding, cutting, and rust removal 3 in 1: Combines welding, cutting, and rust removal functions in one device, suitable for various metal materials and industrial applications, meeting diverse usage needs. Ergonomic design: Features a comfortable handle for easy and stable one-handed operation, making soldering more efficient and less tiring, ideal for beginners and professionals alike. Wide application: Multifunction iron welder kit suitable for soldering circuit boards, appliance repair, jewelry making, metal crafts, computer repairs, and DIY projects. Ideal for beginners, welders, household use, and training purposes. Wire diameter: 0.8–1.2mm Package: 5 pcs/set Includes: 1 set multifunction soldering iron or 1 roll 30g 0.8mm soldering wire