Product Description The chain flail head is a carbide-tipped special tool designed for the toughest blockages such as cement, urine, and limescale in wastewater pipes. Application Benefits Intensive cleaning action, particularly suitable for concrete and cast iron pipes. Reduces the potential for new blockages and is ideal for vertical drains. With ring: For better centering of the chain flail head. Without ring: Improved maneuverability in bends. Area of Use For use with 16 mm pipe cleaning spirals to clean greasy and crusted pipes and to break up the toughest blockages caused by cement, urine, and limescale.