Precision soldering tip T210-K030 knifeâ¶... The soldering blade sharp.â¶... T210 series rotors areÄ... integrated with heater and temperature sensor.â¶... The T210 series rotary is characterized by express heating (reaching 350°C in about 2 seconds)â¶.... The quick wayââ'¬â"¢s dimension of the T210 arrowheads makes it possible to exchange them hot (using a temperature-resistant mat to grip the hot arrowhead).