Powerbuilt Flexible Hose Clamp Driver 1/4 Inch and 5/16 Inch, Auto Specialty Tool, Car Service Loosen and Tighten Hose Clamp Nuts - 647769 - Amazon.com
1/4 inch Flexible Hose Clamp Driver,Disassembly Repair Hand Tool for Car Tighten Hoop Screw Automotive - Walmart.com
Amazon.com: Performance Tool W80657 Flexible Hose Clamp Driver - Pliers for Tightening and Loosening Hose Clamps with Precision and Ease : Everything Else