- Weller T0051402999 Professional Lead-Free Solder Wire Kit, designed for DIY, electronics, and technical repair applications. - Composed of a high-purity Sn99.3Cu0.6Ni0.05 alloy, providing strong and durable solder joints. - Includes three diameters (0.3 mm, 0.5 mm, and 0.8 mm) for greater versatility in different types of work. - Continuous flux core with a 3.5% content, ensuring uniform flow and clean soldering. - Significantly reduces tip consumption, resulting in lower cost and increased efficiency. - Minimizes splatter, increasing safety and making it easier to clean the work environment. - Ideal for soldering on complex surfaces, guaranteeing optimal and professional results. - Supplied in a 21 gram sample kit, easy to transport and store.