With this I was able to desolder and solder the connector pins on my microcontroller. I was also able to use this to desolder and completely remove pins from a 4 pin i2c OLED display module. The suction is fine, I can still see solder in the hole. Sometimes I have to desolder each hole two or three times to clean it. There is no heat-related melting and cleaning is very easy. A useful tool in my soldering tool box.