Item number: 2021-1

which the manufacturer indicates as suitable for hard soldering (hartverlötet)

Thanks to its transparent construction

The ICD258 is described on the manufacturer's product page with dimensions and packaging information as provided below

XT-BX Loddespids 2.4x0.8mm MIL303101111 Item number: 2021-1Introduction This Weller soldering tip, XT BX 30 (Item No. T0054474499), is a chisel shaped soldering tip designed for use with WXP 120 and WP 120 soldering irons. The description and datasheet clearly identify the product as an interchangeable tip in the XT series with a working diameter of 2. 4 mm and a 30 angle. Description Tip shape: chisel. Working diameter: 2. 4 mm. Angle: 30. Series: XT (HM XT tip type). Compatibility: WXP 120 and WP 120