RIDGID 66653 4" Penetrating Head Chain Knocker

RIDGID 66653 4" Penetrating Head Chain Knocker (FlexShaft K9-306)   Compatible with the FlexShaft K9-306 drain cleaning machine, this penetrating head chain knocker with a carbide tip is ideal for opening complete blockages such as grease, hair, and other soft blockages. In addition, it provides wall-to-wall cleaning and features a three-chain design, and fits 4 to 5" (102 to 127 mm) pipes. (1) Penetrating Head Chain Knocker   RIDGID 66653 Features: Varying sizes for 1 ¼” – 6” pipes Hard walled pipes Wipes, scaling, roots, grease, soft blockages   RIDGID 66653 Specifications: Length 2.125" Width 2.625" Height 7.875"     RIDGID offers a wide variety of FlexShaft® accessories in different sizes for the most cleaning efficiency on the jobsite. Depending on pipe size, pipe material and blockage, there are different chain Knockers and Brushes for every job. Knowing when to choose Brushes or standard, carbide tipped or penetrating head chain Knockers can help you get the