5/16" ZIP-ZIP Flex shaft cable for kitchen and bath lines | How to use a 5/16" ZIP-ZIP Flex shaft cable with a 1-chain chain knocker hooked up right to your battery drill,
Chain Knockers for Flexible-Shaft Machines - MyTana LLC
RIDGID Unveils K9-12 FlexShaft Drain Cleaning Machine From: RIDGID, a subsidiary of Emerson | For Construction Pros