There is a lot to tell about a power unit, but you probably just want to know if it always works and delivers the necessary power to the tool. The answer is yes, so no worries. The Mini / Maxi -series are equipped with high flow pumps to give speed and performance. They do not lose speed when using two tools simultaneously, and they have enough hydraulic fluid storage that is big enough to operate a full set of hydraulic tools. Lightweight, they have excellent cooling capacity. The Maxi -series are available to connect or operate one, two, three or even four tools at the same time.