The Snap On SWR2 Oxygen Sensor Socket is a high-quality, 3/8 inch drive tool designed for automotive use. With a standard 6 point drive type and a durable black oxide finish, this single item socket features a size of 7/8 inches. Manufactured by Snap-on, a trusted brand known for their reliable hand tools, this SAE measurement socket is a valuable addition to any mechanic or car enthusiast’s tool collection. Made in the United States, this oxygen sensor socket is a must-have for those looking for precision and quality in their automotive maintenance and repair work.