The BLACK+DECKER BDA42SD 42-Piece Standard Screwdriver Bit Set contains all the ideal sizes and geometries for frequent use projects and installation, which includes a variety of 1 in. screwdriver bit tips for household projects. It also includes a magnetic drive guide as an added benefit to make your projects go easier. All of this is contained in a compact case featuring a clear lid so you an easily take along to different work areas. Includes: (2) PH1 bits, (5) PH2 bits, (2) PH3 bits, (2) Hex 5/32 in. bits, (2) Hex 3/16 in. bits, (2) Hex 1/4 in. bits, (2) SL6 bits, (3) SL8 bits, (3) SL10 bits, (2) SL12 bits, (2) SQ1 bits, (3) SQ2 bits, (2) SQ3 bits, (2) Star10 bits, (2) Star15 bits, (2) Star20 bits, (3) Star25 bits, (1) magnetic drive guide, (1) storage case.