T245-4.7k â¶... Precision soldering arrowhead type note.â¶... T245 series rotors are integrated with a heater and temperature sensor.â¶... The T245 series rotary is characterized by express heating (reaching 350°C in about 4 seconds)â¶.... The quick wayââ'¬â"¢s dimension of the T245 arrowheads makes it possible to exchange them hot (using a temperature-resistant mat to grip the hot arrowhead). ⶳ¸¿ A) Plug and play installationNo need to disassemble the handle - plug and play arrowheads, say goodbye to the tedious changing of blades, greatly improves work efficiency.Simple, streamlined shape, carefully crafted, let you enjoy nano-solderingⶳ£¬¸¿ B) Simply insert the soldering iron into the holder and pull the soldering iron to disassemble it..