This Mac Tools socket set includes XD206 5/8" & XD246 3/4" with 6 point sockets, both with a deep chrome surface finish. They are designed for use with a 3/8in. drive type and are manufactured in the United States. The set is perfect for use in automotive repairs and other tasks requiring high-quality sockets. The set is made by Mac Tools, a reputable brand in the industry known for producing high-quality hand and automotive tools. This set is ideal for both professionals and DIY enthusiasts. The sockets are designed to fit standard socket types and are measured in SAE units. With the Mac Tools socket set, you can be sure you are getting reliable and durable tools for your next project. One has previous owner marks.