The Performance Tool W80657 Flexible Hose Clamp Driver is a must-have tool for any technician or DIYer. With its flexible shaft, accessing hard-to-reach hose clamps is a breeze. The ergonomic handle provides a comfortable grip during use, and the tool comes with versatile 1/4 and 5/16 inch sockets that fit most hex drive hose clamps. Its 1/4 inch square drive is compatible with most standard ratchets and sockets, making it a versatile addition to any toolbox. The patented design of this tool, attested by its US patent number D693201, ensures that it is unique and innovative.