TOOLS. Universal tools will only attach to Universal rods and Lockfast tools only to Lockfast rods. The sizes 4" and 6" refer to the minimum size of drain the tool will pass through. Worm screw used for pushing through obstruction or for pulling it back to the operator.
https://www.bes.co.uk/drain-rod-universal-double-worm-screw-2-13034/33118Universal Drain Rod Double Worm Screw - 2"https://www.bes.co.uk/media/catalog/product/u/n/universal-2in-double-worm-screw_min_13034_P_1.jpg2.382.38GBPInStock/Tools & Equipment/Tools/Plumbing & Heating/Drain Equipment815121593109653TOOLS. Universal tools will only attach to Universal rods and Lockfast tools only to Lockfast rods. The sizes 4" and 6" refer to the minimum size of drain the tool will pass through.<br/>Worm screw used for pushing through obstruction or for pulling it back to the operator.Unbranded00https://www.bes.co.uk/media/catalog/product/u/n/universal-2in-double-worm-screw_min_13034_L_1.jpg5056198124900add-to-cartfacet_type:Drain Rod Toolsspecial_price:2.380000products_related:13022,13023,10733,4864,13026,13027,19638,13028,13029,13361,10721,17963sku:13034Drain Rod Tools13022,13023,10733,4864,13026,13027,19638,13028,13029,13361,10721,17963130342.380000No{"Pack Size":"1"}Unbranded2"