CLOSEOUT HAND TOOLS: 8 PIECE METRIC HEX BIT SOCKETS ON RAIL 3/8 INCH DRIVE, GREAT NECK. This 8 piece metric hex bit set comes with a limited lifetime warranty. • Includes sizes: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, and 10mm. • Made of CR-V steel for strength and durability. • Chrome plated to resist rust. • Comes with storage rail. • 3/8 inch drive Wholesale, 24 per unit.