Shamrock hydraulic root cutters are unsurpassed tools for attacking heavily root-impacted sewer lines. Shamrock root cutting saws are heat treated for superior durability – each root saw is powered by a hydraulic motor and is designed for specific operating pressures and flows for your sewer jetter or sewer flusher. Unlike sewer nozzles that try to pulverize roots, these root cutters will cut, tear, and yank on the roots to completely clear the drain line in short order.