The Lumberjack low-torque, high-speed cutting nozzle from NozzTeq is designed for high water pressures. It can be used for removing roots, as well as clearing grease, tuberculation, protruding laterals and other buildups without cutting through host pipes. The water-cooled bearings are sealed, grease-lubricated, and largely maintenance-free. The cutters rotate at a minimum speed of 10,000 rpm with flow rates from 10 to 250 gpm at varying pressures and operate in pipes from 3 to 48 inches in diameter. All models clean with chain links and optional cutting blades for severe blockages. All models have a propelling jet housing with optional tow rings. 866/620-5915; www.nozzteq.com.