The Second Generation Milwaukee M18 Fuel Blower is an updated version of its predecessor, the Milwaukee 18V Cordless. Both are impressive, boasting great efficiency and great design at the heart of their construction. The Second Generation M18 performs better than its predecessor in the sense that it is a 120MPH machine (a 10 MPH improvement). It retains the 450CFM rating and can now reach full throttle in less than one second. It is four pounds lighter and you can now use a 2-speed switch for better control and speed selection. The fuel blower can work from 15 ft. Nice!