This multi-bit screwdriver and nut driver by Klein Tools features a convenient folding design to fit inside your pocket. Metric Driver features screwdriver sizes 0.9 mm, 1.3 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm Hex Bits and 5/16-Inch and 1/4-Inch Nut Driver sizes. With quick change bit retenti