The Lumberjack low-torque, high-speed cutter from NozzTeq is designed for use with high water pressures for cutting roots, cutting 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, 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, while some have tow rings. 866/620-5915; www.nozzteq.com.