Easy to use: connect the tool to the well casing, tighten the screw, and pass the pump pipe through the roller for simple and convenient operation. Efficient well pump pulling function: the Well Pump Pulling Installing Assist Tool helps place or pull the well pump, improving work efficiency and saving time. Durable metal construction: made of carbon steel and PP, the tool offers a stable structure for longterm use and reliable performance. Designed for large casings: specifically built for well casings over 4 inches, providing flexible use to meet a range of pump installation needs. Applications: well installations with casings over 4 inches, for precise pump placement. Pump replacement or maintenance in existing wells with largediameter casings, to streamline pulling and reinstallation. Onsite field service or contractor work at remote locations needing efficient pump positioning and retrieval.