The Lumberjack cutting nozzle from NozzTeq is a low-torque, high-speed cutter for use with high water pressures. It is especially good at cutting roots, but is also commonly used to cut grease, tuberculation, protruding laterals and other buildups. Because it’s low torque, it’s unlikely to cut through host pipes. The bearings are sealed, grease-lubricated and water-cooled, and largely maintenance-free. It rotates at a minimum speed of 10,000 rpm with flow rates from 10 to 250 gpm at varying pressures. It can operate in pipes from 3 to 48 inches. All models clean with chain links, with optional cutting blades for severe blockages. All come with a propelling jet housing, and tow rings are available. 866/620-5915; www.nozzteq.com.