The Performance Tool W38791 11 PC X-TRAX METRIC HEX BIT EXTRACTOR SET includes a variety of hex bit sizes in both 1/4 and 3/8 drive sizes. Made by the trusted brand Performance Tool, this set is designed to easily extract nuts and bolts with precision. The X-TRAX design allows for easy bit changes and the set includes everything needed for various automotive applications. Overall, this product is a versatile and reliable addition to any mechanic’s toolbox.