Efficient Desoldering: The Aluminum Metal Desoldering Pump Suction Tin Soldering Sucker Pen Removal Vacuum Soldering Iron Desolder Hand Welding Tools is designed to efficiently remove solder from circuit boards and other electronic components. Easy to Use: With its simple design, the Desoldering Pump is easy to use, making it perfect for both and DIY enthusiasts. Material: Made of high-quality aluminum metal, this Desoldering Pump is and built to last, ensuring that you get the most out of your investment. Specifications:Range of temperature regulation: 1; Scope of application: Tin removal; Maximum suction: 30 Operation Manual: 1. Put the tin suctioner piston downward pressure to get stuck. 2. Heating solder joints to solder melting with electric soldering iron. 3. Remove the iron and quickly put the tin suctioner resistance paste solder, solder sucker and press the button. 4. If It is not clean at one time and can be repeated many times. Using skills: 1. To good solder sucker piston seal. Before electricity, with your fingers to plug hole solder sucker head, solder sucker head to press the button, if the piston is not easy to into place, that the seal is good. 2. The aperture tin suctioner heads are of different sizes, select the appropriate specifications. 3. Tin suctioner head wears, should replace the new one. 4. Solder paste is dipped in a little bit of rosin before contact with solder to improve solder fluidity. 5. Head contact pads are slightly longer, when solder melts, the solder joint pin as the center, then hand out in a clockwise direction to draw a circle, and then press the button tin suctioner. Note: Due to different production batches, there may be slight differences in products. Material: plastic colour: As shown Package Contents: 1 x Desoldering Pump 5 x Nozzles Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.