The Hand Electric Drill Pump Drive Self Priming Pump is made with fine workmanship and durable plastic, ensuring a long service life. It features a large flow, stable performance, and high efficiency, making installation easy. With a pumping speed of 20-30 L water per minute (depending on the rpm of the drill), this pump is fast and efficient. It can be easily attached to any drill chuck, allowing you to use your electric drill as a pump. The compact and lightweight design makes it portable and easy to store. The recommended speed for optimal performance is between 1500-3500 rpm. The pump head and flow are directly related to the speed of the drill. At 1500 rpm, the pump head is approximately 1.5 meters and the flow rate is about 15L per minute. At 3000 rpm, the pump head increases to about 3 meters, with a flow rate of about 30L per minute. This Hand Electric Drill Pump is black in color and measures approximately 106*37*64mm. It is made of durable plastic and weighs approximately 218g. The inner tube diameter is approximately 15mm, while the transmission shaft diameter is 8mm round shank. The working temperature range is approximately 5-49C (41-120F) and the direction of rotation is clockwise. The package includes 1 Drill Pump, 2 Hose Clamps, and 2 Connectors. Please note that the actual color of the product may vary slightly from the images due to monitor differences. If you encounter any issues with the product, please contact us before leaving negative feedback. Please allow for a 1-3mm error due to manual measurement. Thank you for your understanding. Key Features: Fine workmanship and durable plastic construction Large flow, stable performance, and high efficiency Easy installation and compatibility with electric drills Compact and lightweight design for portability Recommended speed range of 1500-3500 rpm Different speed settings for varying pump head and flow Black color and compact size Package includes Drill Pump, Hose Clamps, and Connectors