The Lumberjack cutting nozzle from NozzTeq is a low-torque, variable-speed multipurpose cutting nozzle powered by common sewer jetting or combination trucks. Its cutting chains rotate at speeds of 10,000 to 50,000 rpm, depending on pressure and flow rate. The precisely engineered cutter is designed to cut roots, but it also effectively clears out concrete, tuberculation, grease, protruding laterals and other obstructions. Low torque means it won’t get stuck, won’t harm host pipe, and won’t spin off the hose end. It has sealed, grease-lubricated bearings and is water-cooled so it won’t need daily maintenance. The cutter drive shaft and turbine are made of hardened steel and the supply tube is made of stainless steel, so the nozzle lasts for seven to 15 years’ heavy use and is easy to rebuild. Five models clear pipes from 3 to 48 inches. 866-620-5915; www.nozzteq.com.