The description and manufacturer data specify the tip type

Material: brass

5 mm (specified in manufacturer text)

The working temperature is selected by replacing the temperature-sensing soldering tip with the desired temperature level — in this case

Product name: BAHCO 6700SM-5

Bøsning XELW-4 Ø4mm RØD for printmontage Unit(s):Foot The description and manufacturer dataProduct Description The XELW 4 from STAUBLI is a rigid 90 angled 4 mm socket designed for direct soldering onto printed circuit boards. The XELW 4 is touch protected in accordance with IEC EN 61010 1 and is made as a turned brass piece with a 2 mm round pin and gold plated (Au) contact surfaces. The right angled design reduces the force transferred to the PCB when inserting a test lead. Documentation View datasheet from the manufacturer Typical