RIDGID® 66573 FlexShaft™ Penetrating Head Chain Knocker, 1/4 in Cable dia, 50 ft L, 2-Chain, 2 in Pipes
RIDGID Asia on Instagram: "Equip your FlexShaft Machines with the right chain knocker and brushes that can blast through soft obstructions that have built up over time in the drain. Learn more
RIDGID T-32 (63115) Chain Knocker for Cleaning 6 in. Pipe w/ K-1500 | eBay
Ridgid 63115 T32 6" Chain Knocker, 6 x 6 x 6, Metal - Drain Augers - Amazon.com