Alltrade 21-Piece 3/8 in. Drive Socket Set a comprehensive collection of sockets and accessories designed for versatile use. This set includes SAE sockets ranging from 5/16" to 3/4" and metric sockets from 9mm to 15mm, providing a wide range of sizes to tackle various projects. It features an 8-inch ratchet with a knurl handle for a secure grip, a 3-inch extension bar, and a 5/8-inch spark plug socket for added functionality. The set also comes with a spin disc, zipper pouch, and two vinyl socket holders to keep your tools organized and easily accessible. With 21 pieces in total, this set is i for both professional mechanics and DIY enthusiasts looking for quality and convenience. Model Number: 835134