Bluespot 14 Piece Metric and Imperial Nut Driver Set
The 1/4in drive shank makes these bits compatible with standard power drills and electric screwdrivers, making them a practical addition to any toolkit. 7 x 1/4in Imperial Nut Driver Bits: 3/16, 1/4, 9/32, 5/16, 11/32, 3/8 and 7/16in.