The M18 FUEL 9" Cut-Off Saw w/ ONE-KEY is an extremely versatile solution for cutting a large variety of materials. The cordless cut off saw runs on our MILWAUKEE M18 REDLITHIUM batteries instead of using gas like most traditional cut off saws. The cut off saw delivers you the Power To Cut Reinforced Concrete as well as a large variety of other metal and masonry materials. It delivers this performance while still being Up To 50% Lighter Than Gas demo saws that are in the market today. By utilizing our M18 REDLITHIUM HIGH OUTPUT HD12.0 Battery (not included), the saw also ensures you will experience No Gas Headaches. The concrete cutting saw produces no fumes so you can use it indoors. It also starts up instantly, eliminates your need to mix gas and oil, and there is no gas engine maintenance. The M18 FUEL 9" Cut-Off Saw also has ONE-KEY integrated so you can wirelessly connect the tool with your smartphone to track and manage the tool.