Standard 6 point with a low profile and slotted design to enable you to remove oxygen sensors with the wiring harness still attached, and the socket is offset and compact which allows extra leverage even in hard-to-reach spots. High QulityMade of high performance chrome molybdenum and solid cast steel construction for strength and durability Finished with Black Oxide to prevent rust and corrosion. Size 7mm slot, 78 22mm x 6point x 3110 80mm length, 38 inch square drive for use with ratchet. Fits all standard oxygen sensors with a 78 hexagon nut. DesignStandard 6 point with low profile and 8mm x 64mm side cutout design to enable you remove oxygen sensors with the wiring harness still attached, and the socket is offset and compact which allows extra leverage even in hard to reach spots. USE Built for use with 38 ratchets, 1 wrenches, and breakers bars to remove and install oxygen sensors and hex vacuum switches on vehicle, even if you dont have a lot of experience working with cars. This high quality tool can save your time Service100 satisfaction guarantee, If you have any issues with the oxygen sensor socket, simply contact customer service for troubleshooting help, parts, replacement, or refund. Our aim is to make you satisfy the parts and the service we provide for you.