General description The Expert E032906 Hex Bit Socket Set is a comprehensive 13-piece metric hex bit set designed for 1/2 inch drive applications. It comes in a durable case with metal clasps, which can also be converted into a modular storage system suitable for use in roller cabinets. Technical specifications Drive Size: 1/2 inch Number of Pieces: 13 Hex Bits: 4, 5, 6, 8, 9, 10, 12mm Hex Long Bits: 4, 5, 6, 8, 10, 12mm