The S906M-1-AK root cutter motor from Southland Tool is built from the same platform as the S906M-1 motor but has an upgraded process for the internal parts that makes it smooth to turn, improving hydraulic performance and nearly eliminating internal corrosion. This process, known as “advanced kinetics,” uses a finish that improves the friction coefficient, allowing parts to run smoother, which reduces drag, saves water, and increases productivity. The metal becomes denser to ward off corrosion and wear. The cutter is designed for lines from 6 to 30 inches. The motor can accommodate hose sizes of 3/4, 1, 1 1/4, and 1 1/2 inches and handles flows from 40 to 170 gpm and pressures from 1,500 to 3,000 psi. It is rated up to maximum 288 pounds of torque and 220 pounds of continuous torque, which is ideal for cutting taps in larger sizes. 714-632-8198; www.southlandtool.com.