The OEMTOOLS 37110 Oxygen Sensor Socket Set is a universal slotted oxygen sensor tool kit that installs, removes, and services automotive hex vacuum switches and oxygen sensors. A standard 6 point design with a low profile and side cutout makes it possible to remove sensors safely with the wiring harness still attached. The o2 sensor tool is offset and compact, allowing extra leverage in confined spaces, and compatible with common 3/8 and 1/2 drive wrenches and ratchets. Don't wrestle with DIY fixes when you need a specialty tool. This professional grade 22 millimeter, or 7/8 inch, o2 sensor socket set is applicable for most vehicles on the road today, both imported and domestic. The OEMTOOLS 37110 Oxygen Sensor Socket Set includes a high quality custom storage case for easy identification and portability. Offset Design Wire drive gate allows sensor access from the side, not the top, preventing damage to wires; Install or pull sensor without detaching the wiring harness Import and Domestic Standard 6 point, 22 millimeter socket fits a broad range of car oxygen systems; 38 and 12 inch drive crowfoots make this a nearly universal O2 removal tool set Professional Grade Sensor Set This specialty tool kit allows you to remove and install oxygen sensors and hex vacuum switches on most vehicles with computercontrolled engines Long Lasting Performance Solid steel construction for strength and durability; Finished with a chrome plating and black oxide to prevent rust and corrosion Details Oxygen sensor set includes 38 inch drive, 78 inch deep socket; 38 inch drive crowfoot socket, 12 inch drive deep crowfoot socket, and a storage case