1、The power and speed of the electric hand drill are different, and the pumping flow is also different. If the power is too small, the pumping flow is small, and the greater the power, the greater the pumping flow. 2、The newly upgraded hex shaft, easy to connect, convenient to fix the bracket, suitable for hand drills with a speed of more than 100W and more than 1000 rpm. 3、This electric drill pump does not require a power source, it can be used as long as there is a hand electric drill. 4、This pump is made of high quality ABS material, durable, easy to use, driven by an electric drill, to meet your various needs. 5、It is new and undergoes rigorous testing, so there is no need to worry about any quality and safety issues.