Clear root intrusion and failed liners easily in hard metal pipes Hey plumber! Having tough blockages in cast iron pipes or other heavy metal pipes? With the Crown Headed Drill Head you will absolutely get a bang for your buck. This bad boy is an absolute beast. You can clear solid obstructions, roots, liners and in some cases even solid concrete! We recommend using this drill head in the hard metal pipes and avoid using it in PVC pipes since the aggressive hard metal tips on the head could damage the PVC pipe. The Drill Head is easily attached to the flex shaft with the included hex screws on the side. Combine with chain knockers If you want to make things even more efficient you can install Circular Chain Knockers or regular Chain Knockers behind the drill head. This way you can easily get through accumulated blockages in the pipe while the chain knockers are following right behind and making finishing touches. Crown or Croco drill head? If you want to clear blockages in hard metal pipes we recommend using the Crown Drill Head.If you want to achieve effective blockage removal in PVC and other soft material pipes we recommend using the Croco Drill Head! Tip diameter of the opening is 25mm (1″) and the total length of the drill head is 45mm (1 ¾″) from front to rear. This drill head is same size regardless of the shaft thickness. The drill head is available for following flex shaft thicknesses: 8mm (⁵⁄₁₆″) 10mm (⅜″) 12mm (½″)
