Goplus 7pcs 3/8-Inch Extra Long Metric Hex Bit Socket Set with Case A high quality metric torque extension set that cuts the time in half when removing hard to reach and corroded hex nuts Heat Treated Chrome Vanadium Steel Bits And Sockets Hex sockets feature laser-etched markings for easier and faster bit selection Constructed of high-grade Chrome-Vanadium alloy steel with mirror-polished chrome-plate that holds up job after job Package includes: 3/8" Drive Sizes: 1/8", 3/16", 7/32", 1/4", 9/32", 5/16", and 3/8"