9 Piece Metric Hex Bit Socket Set PITTSBURGH 3/8" & 1/2" Drive. 3/8: drive 4, 5, 6, 7, 8, 10mm & 1/2 drive 12, 14, 17. Ideal for removing and replacing hex fasteners in automotive and machinery applications, such as hex cap bolts and screws, this hex bit socket set is perfect for any shop or garage. It features high visibility markings for easy size identification and a chrome vanadium steel construction to withstand heavy use. New, never used. Gift quality.