3/8 Inch Drive Accessories: 3/8"Fx1/4"M adaptor 1/4 Inch Drive Regular Impact Sockets: 6, 7, 8, 10, 13mm. 3/8 Inch Drive Regular Impact Sockets: 8, 10, 11, 12, 13, 14, 16, 17, 19mm 3/8 Inch Drive Deep Impact Sockets: 8, 10, 11, 12, 13, 14, 16, 17, 19mm Sockets are made from chrome molybdenum according to GGG-W-6608 for strength and durability Supplied in a unique tool tray which features a removable lid and dove tail joints. The set can be used on its own as a standalone set or as part of our Get Organized system where all of our tool trays click together allowing you to build your ultimate tool setup., Manufacturer: Teng Tools