The Challenger by Proto 1254 3/8"- 1/2" Socket Adapter is a high-quality hand tool designed for automotive use. Made by the reputable brand Proto, this single item adapter features a chrome surface finish and a 6-point drive type. With a size of 3/8" and the ability to adapt to a 1/2" socket, this durable and reliable tool is perfect for various mechanical tasks. Made in the USA, this socket adapter is a must-have for any mechanic or automotive enthusiast looking for a dependable and versatile tool for their toolbox.