Description
RIDGID 64318 4″ Carbide Tipped Chain Knocker (FlexShaft K9-204)
The RIDGID K9-204 4″ CARBIDE (64318) FlexShaft 3-Chain Knocker with Carbide Tip is designed for use with the K9-204 FlexShaft Drain Cleaning Machine and provides wall-to-wall cleaning in 4 in. pipes. The chain knocker expands to a pipe’s inside diameter to break up blockages. The model 64318 Chain Knocker fits 5/16 in. cable and is equipped with three chains. The carbide tipped chain knocker is ideal for cleaning hard-walled pipes, including for soft blockages, grease, scale, and roots.
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Chain Knockers With Carbide Tip – Chain Knockers with carbide tips clean wall to wall and are ideal for removing scale and light roots as well as other grease and soft blockages in hard-walled pipe types
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For use with the RIDGID K9-204 FlexShaft Machine
Specifications:
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Pipe Capacity: 4″ (100 mm)
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3 Chain
Features:
- Expands to break up blockages and clean pipe walls.
- Carbide tips suitable for hard walled pipes.
- Equipped with three chains.
- Fits 5/16″ cable.
Applications:
- Soft Blockages
- Grease
- Scale
- Roots


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 best performance out of your machine.
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