Worm Screw drain rod tools work best when trying to clear a more solidified type of obstruction such as rags, fats, grease, silt or a severe root mass as these worms can be repeatedly wound into the obstruction like a cork screw to either break up the blockage and let it wash away or retrieve it for disposal.
Available in a range of sizes and for Universal thread and Lockfast rods

Used to collect the debris jetted back to the chamber when cleaning drains and sewers. Fits on the end of a standard Universal Rod and has a rope eye for additional security if required.