GearWrench 3924D 1/2" Drive Oxygen Sensor Socket 7/8" (22mm), Black Go to amazon.com Related posts Which is the best 22mm socket gearwrench? FeatureOffset end has double hex 1/2" drive for access (50mm long)Color: BlackManufactured in Taiwan Description1/2" drive Oxygen sensor socket 7/8" (22mm). offset end has double hex 1/2" drive for access (50mm long).