The Model 468 Root Cutter from Spartan Tool uses hydraulic motors that utilize the flow from a hydrojetter to propel themselves down sewer lines to attack root intrusions and blockages. Its case-hardened saw blades combine with a high-rpm hydraulic motor to rip, tear and shred roots from even the hardest hardwoods. It comes in an impact-resistant toolbox with quick-change skids to center the unit in 4-, 6-, 8- and 10-inch sewer lines. These circular tri-blades are sized to stay just under the pipe’s interior diameter and attack roots, ensuring a clear pipe when the job is complete. The unit operates on 1/2-, 3/4- or 1-inch hose at flows between 10 and 15 gpm and pressures between 800 and 2,000 psi. 800/435-3866; www.spartantool.com.