CHAIN HEAD AUGER
(KNOCKER)

This SRECO-FLEXIBLE tool, when rotated properly, will remove rust and scale from the pipe down to the metal without damage to the pipe or corporation cock. The solid-steel body has chain half-loops welded to it with the chains and knockers at precisely the right length for the pipe size being cleaned. The knockers are hard-face and ground properly, assuring that the pipe will come back to 95% of its original flow capacity. Chain Head Augers require high speed power drives to rotate up to a maximum of 600 RPM for utmost effectiveness.