The MAC TOOLS SMH17PT 17-PC. 1/4 Drive SAE and Metric Hex Driver Set is a premium set of hand tools designed for automotive use. With a drive size of 1/4 inch, this set includes both SAE and metric hex drivers, making it versatile for a variety of applications. Manufactured by the reputable brand Mac Tools, this set is a reliable and durable option for professionals and DIY enthusiasts alike.