The Screwdriver Bit Set, 32-piece is a good choice for universal use. This set containing various screwdriver bits comes in a small and compact case with a transparent lid, which fits onto a belt for easy access. The bits are also colour-coded for quick viewing and identification of the appropriate bit type. It has a 1/4-inch external hex shank and is intended for universal screw-driving with screwdrivers and drill drivers. The Screwdriver Bit Set, 32-Piece comes in a practical and robust storage box providing a good view of its contents as well as safe storage and transport. This set contains: PH1, PH2 (2x), PH3 PZ1, PZ2 (2x), PZ3 HEX 3/4/5/6 T10, T15, T20 (2x), T25, T27, T30, T40 S 3/4/5/6 Th 10/15/20/25/27/30/40 The Screwdriver Bit Set, 32-piece comes in a practical and robust storage box providing a good view of its contents as well as safe storage and transport.