Features: Made of Chrome Molybdenum Steel Black Phosphate Finish ½” Drive Hex Bits Heavy duty impact design Can be used with Impact guns, ratchets or breaker bars Each socket has a drilled end to facilitate retaining ball bearing Supplied in a coloured moulded storage case Specification: Sizes: 5,6, 8, 10, 12, 14, 17, 19mm Length: 78mm