ABN 7/8" 22mm Flexible Head Oxygen Sensor Head Wrench - Walmart.com
21pcs O2 Oxygen Sensor Socket Wrench Set 6 Point 7/8" Remover Installer Tool Kit | eBay
Amazon.com: Uisky AA Oxygen Sensor Sokcet,3/8 Inch O2 Sensing Sleeve x 0.86 inch 6-angle Specification,Steel Universal Puller Oxygen Sensor Wrench for Most Models of Cars (white). : Automotive