The Craftsman 7 Piece Standard Nut Driver Set is a great addition to any tool collection. The tip thicknesses include 3/16-Inch, 1/4-Inch,5/16-Inch, 11/32-Inch, 3/8-Inch, 7/16-Inch, and 1/2-Inch. The set includes 1 each of sizes: 3/16-Inch, 1/4-Inch, 5/16-Inch, 11/32-Inch, 3/8-Inch, 7/16-Inch and 1/2-Inch. These nutdrivers come with a convenient plastic carry rack.