Soldering Tip Round Shape XT BS The Soldering Tip Round Shape XT BS is a high-quality accessory for the Weller soldering irons WP 120 and WXP 120. This model has a diameter of 2.4 mm and a length of 37 mm, which allows for precise soldering tasks. The round shape of the tip supports versatile applications. The tip is part of the XT series and is specifically designed for demanding soldering processes. It is delivered individually packaged.