The 1-Chained Heavy Duty Chain Knocker is tailor-made for plumbing professionals who need agile and effective descaling done for hard-to-reach areas inside hard metal pipes. The single-chain design ensures smooth navigation through bends, mirroring the flexibility of your flex shaft. Basically it goes wherever the flexible shaft can go. How does it perform compared to other chain knocker options? In comparison this 1-Chained option offers a slightly broader cleaning surface with the cost of flexibility than Mini Chain option and a bit more flexibility with slightly lesser descaling speed than the 2-Chained option. For maximum flexibility, with the cost of cleaning surface the Mini Chain is slightly better option. When looking slightly less flexibility and more descaling speed from the chain, we recommend considering the 2-Chained option. If you mostly have straight line with barely any bends we highly recommend considering the 3-Chained option to speed things up. We still recommend having at least one flexible option with you than the 3-Chained. Excellent durability & great descaling power Like all the other Heavy Duty Chain Knockers, this 1-Chained model is also equipped with robust Croco-shaped tips and are considered the most durable chain knockers available for hard metal pipe descaling while having slightly less descaling power than the Medium Duty Chains. Overall Heavy Duty Chains are suitable for hard metal pipes like Cast Iron, Galvanized Steel Pipes, Orangeburg Pipes, Vitrified Clay Pipes (VCP), Terracotta/Clay Sewer Pipes and other hard material pipes. While we recommend this chain knocker for these kinds of hard metal pipes, please always check that the overall condition of the pipe to avoid using too aggressive chain to the task. If you are unsure if the pipe will withstand the descaling power, please choose more gentle option like Light Duty Chain Knocker, Circular Chain Knocker or Gentle Duty Brush. We do not recommend Heavy Duty Chain Knockers for PVC or other soft material pipes due to its aggressive nature. Some experienced professionals may find it suitable for challenging tasks in PVC, but caution is advised to avoid potential damage. For PVC cleaning purposes we recommend considering Light Duty or Gentle Duty options. Available in following sizes: 32mm (1¼”) for flex shaft thicknesses of 6mm (¼″) 50mm (2″) for flex shaft thicknesses of 6mm (¼″) and 8mm (⁵⁄₁₆″) 75mm (3″) for flex shaft thicknesses of 6mm (¼″) and 8mm (⁵⁄₁₆″)
