Craftsman 6 PC Hex Bit Socket Metric *Drive Size: 3/8 in. drive *Metric or SAE: Metric *Product Type: Hex Bit Socket Set *Number in Package: 6 pc. *Material: Alloy Steel *Finish: Polished Chrome *Packaging Type: Carded *Impact Rated: No *Sizes Include: 4, 5, 6, 7, 8 and 10 mm *Discovery CON, NBR, SUP, EXP